Mines in Skagit County, Washington
468Total
91Active
| Mine | Commodity | Type | Status | Source |
|---|---|---|---|---|
| Beaver Lake Quarry | Crushed, Broken Granite | Surface | Active | MSHA |
| Belleville | Construction Sand and Gravel | Surface | Active | MSHA |
| Birdsview Pit | Sand, Common | Surface | Active | MSHA |
| Elwha Gravel Pit | Construction Sand and Gravel | Surface | Active | MSHA |
| Hamilton | Crushed, Broken Sandstone | Surface | Active | MSHA |
| Hamilton Pit | Construction Sand and Gravel | Surface | Active | MSHA |
| Pacific Quarry | Crushed, Broken Stone NEC | Surface | Active | MSHA |
| A. J. I. Corporation | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Aimcor Olivine | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Alger Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Allied Aggregates & Asphalt Paving | Sand and Gravel, Construction | Surface-Underground | Producer | MRDS |
| Alvard | Talc-Soapstone | Surface | Producer | MRDS |
| Associated Sand & Gravel Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Beacon Point | Magnesite | Surface | Producer | MRDS |
| Cascade Pit And Plant | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Christofferson Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| City Of Mt. Vernon | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Commercial Excavating Co., Inc | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Concrete | Limestone, General | Surface | Producer | MRDS |
| Concrete Nor West, Inc. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Concrete Nor'west Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| D.n.r. Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dads Girl Claim | Talc-Soapstone | Surface | Producer | MRDS |
| Dept. Of. Highways | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dept. Of Highways | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dept. Of Highways | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dept. Of Highways | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dept. Of Highways | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dept. Of Hwys | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Dukes Hill Quarry | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Dukes Hill Quarry | Stone, Dimension | Surface | Producer | MRDS |
| Eagle Bluff Pit And Portable Mill | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Earl R. Curry | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Ellestad, Virgil | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Forest Sales Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Franek Quarry | Stone, Dimension | Surface | Producer | MRDS |
| Frank Janicki | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Geep Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Georgia- Pacific Corp. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Georgia-pacific Corp. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Hamilton Mill | Magnesite | Processing Plant | Producer | MRDS |
| Hamilton Mill | Magnesite | Surface-Underground | Producer | MRDS |
| Jim Hoy Co. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Knudson, Harold, Jr. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Lang S&g | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Last Chance Pit No. 1 | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Londonderry | Talc-Soapstone | Surface | Producer | MRDS |
| Lone Star Cement Corp. | Limestone, General | Processing Plant | Producer | MRDS |
| Mc-myrl - Wilson | Talc-Soapstone | Surface | Producer | MRDS |
| Mount Vernon Asphalt, Inc. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Nordlund Quarry & Mill | Stone, Crushed/Broken | Surface | Producer | MRDS |
| North Big Deer Pit | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Northwest-international Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Olivine Hill | Magnesite | Surface | Producer | MRDS |
| Osberg Const. Co. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Pacific Dump Truck Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Pacific Quarries | Stone, Dimension | Surface | Producer | MRDS |
| Pacific Quarries | Stone, Dimension | Surface | Producer | MRDS |
| R.e. Peterson Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Reef Point | Magnesite | Surface | Producer | MRDS |
| Rods Trucking Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Samish Pit & Mill | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Samish Pit & Mill | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Samish Pit And Plant | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Scheel Doris # 3 | Silica | Surface | Producer | MRDS |
| Scheel Quarry | Magnesite | Surface | Producer | MRDS |
| Skagit County | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Rd. Dept. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit County Road Dept | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Skagit Talc Products | Talc-Soapstone | Surface | Producer | MRDS |
| Skamania County Quarry | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Strawberry Bay | Magnesite | Surface | Producer | MRDS |
| Upper Samish Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Valley Ready Mix Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Van De Grift Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Vista Bella Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Vogel Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wesco Concrete Co., Inc. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Whatcom Skagit Quarries | Stone, Crushed/Broken | Surface | Producer | MRDS |
| Whatcom And Skagit Quarry | Stone, Dimension | Producer | MRDS | |
| Whatcom-skagit Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wilder Const. Co., Inc. | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wilder Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wilder Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wilson L. Shaw Pit | Sand and Gravel, Construction | Surface | Producer | MRDS |
| Wind River | Gemstone | Surface | Producer | MRDS |
| Alger | Clay | Surface | Unknown | MRDS |
| Alger | Talc-Soapstone | Occurrence | MRDS | |
| Allan Island | Stone | Occurrence | MRDS | |
| Alta | Lead | Underground | Unknown | MRDS |
| Alta Claim | Zinc, Silver, Lead | Occurrence | MRDS | |
| Aluard | Nickel | Occurrence | MRDS | |
| Alvard | Nickel | Surface | Past Producer | MRDS |
| Alverson | Nickel | Occurrence | MRDS | |
| Alverson Deposit | Strontium | Occurrence | MRDS | |
| Anacopper | Silver, Gold, Copper | Occurrence | MRDS | |
| Anacortes | Chromium | Occurrence | MRDS | |
| Anacortes Copper Prospect | Copper | Prospect | MRDS | |
| Anacortes Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Anacortes Quarry And Mill | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Associated Sand & Gravel Co., Inc. | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Butler Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Bacon Creek | Stone, Crushed/Broken | Surface-Underground | Prospect | MRDS |
| Bald Mountain Mine | Gold, Copper | Occurrence | MRDS | |
| Bald Mountain Quarry | Copper | Surface | Past Producer | MRDS |
| Bar Sand And Gravel, Inc. | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Bar Sand And Gravel, Inc. | Stone, Dimension | Surface | Unknown | MRDS |
| Bar Sand And Gravel, Inc. | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Beaver Lake Quarry | Crushed, Broken Sandstone | Surface | Abandoned | MSHA |
| Belleville | Surface | Prospect | MRDS | |
| Belleville | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Belleville Property | Manganese | Occurrence | MRDS | |
| Bellingham Claims | Chromium | Occurrence | MRDS | |
| Bellingham Group | Surface | Occurrence | MRDS | |
| Big Lake | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Big Lake | Graphite | Occurrence | MRDS | |
| Big Lake Pit | Sand, Common | Surface | Intermittent | MSHA |
| Big Rock Pit | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| Bingham | Nickel | Occurrence | MRDS | |
| Blackmore Transfer Co | Sand and Gravel, Construction | Underground | Unknown | MRDS |
| Borrow Pit | Sand and Gravel, Construction | Underground | Unknown | MRDS |
| Boston | Lead | Underground | Past Producer | MRDS |
| Boston Claims | Zinc, Silver, Lead | Past Producer | MRDS | |
| Bridge Creek | Talc-Soapstone | Surface-Underground | Unknown | MRDS |
| Broderick | Limestone, Dimension | Surface | Unknown | MRDS |
| Buckindy | Copper | Occurrence | MRDS | |
| Burlington | Asbestos | Surface | Past Producer | MRDS |
| Burlington | Stone | Occurrence | MRDS | |
| Burlington | Palladium | Surface | Unknown | MRDS |
| Burlington Northern Inc | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Burns | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Burrows Island | Stone | Occurrence | MRDS | |
| Callahan | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Cascade | Lead | Past Producer | MRDS | |
| Cascade Claims | Silver, Lead | Occurrence | MRDS | |
| Cascade International Talc | Talc-Soapstone | Occurrence | MRDS | |
| Cascade Talc Pit | Talc-Soapstone | Surface | Past Producer | MRDS |
| Casey's Quarry | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Cavanaugh Lake | Nickel | Occurrence | MRDS | |
| Cavanaugh Lake | Nickel | Occurrence | MRDS | |
| Cerrico Claim | Zinc, Lead | Occurrence | MRDS | |
| Challenger Pit | Sand, Common | Surface | Abandoned | MSHA |
| Chicago | Lead | Occurrence | MRDS | |
| Chicago Claims | Silver, Zinc, Lead | Occurrence | MRDS | |
| City Of Anacortes | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Clear Lake | Nickel | Occurrence | MRDS | |
| Clear Lake Mill | Talc-Soapstone | Processing Plant | Past Producer | MRDS |
| Clendenen Point Iron Deposit | Iron | Occurrence | MRDS | |
| Cliff | Zinc | Prospect | MRDS | |
| Cliff Claim | Zinc, Copper | Occurrence | MRDS | |
| Concrete | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Conway | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Conway Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Cornelius Magnesite,nickel-gold Dep | Magnesite | Surface | Prospect | MRDS |
| Crescent | Limestone, Dimension | Surface | Unknown | MRDS |
| Cultus Mountain | Nickel | Occurrence | MRDS | |
| Cultus Mountain | Nickel | Occurrence | MRDS | |
| Cultus Mountain | Nickel | Occurrence | MRDS | |
| Cunningham Crushing, Inc | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Curry-eerks-johnson | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Cutthroat | Cobalt | Occurrence | MRDS | |
| Cypress Lake | Surface-Underground | Past Producer | MRDS | |
| Cyprus Lake | Chromium | Occurrence | MRDS | |
| Damnation Creek | Limestone, Dimension | Occurrence | MRDS | |
| Davis | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Day Creek Pit | Construction Sand and Gravel | Surface | Temporarily Idled | MSHA |
| Day Creek Roadcut Exposure | Nickel | Occurrence | MRDS | |
| Deane Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Dept. Of Highways | Sand and Gravel, Construction | Surface-Underground | Unknown | MRDS |
| Dept. Of Highways | Stone, Crushed/Broken | Surface | Unknown | MRDS |
| Dept. Of Highways | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Diamond Mine | Silver | Prospect | MRDS | |
| Diobsud | Nickel | Surface-Underground | Unknown | MRDS |
| Dnr Pit | Sand and Gravel, Construction | Unknown | MRDS | |
| Doris | Stone, Crushed/Broken | Surface-Underground | Past Producer | MRDS |
| Dot Island | Stone | Occurrence | MRDS | |
| Dukes Hill Quarry | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Dunlap Towing Co | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| E. L. Miller | Sand and Gravel, Construction | Surface-Underground | Unknown | MRDS |
| Eagle | Prospect | MRDS | ||
| Eldorado | Lead, Silver | Occurrence | MRDS | |
| Eldorado | Gold | Underground | Unknown | MRDS |
| Ella Bea And Flaim | Copper | Occurrence | MRDS | |
| Ella Bea And Flaim Claims | Copper | Occurrence | MRDS | |
| Elsie | Copper | Prospect | MRDS | |
| Elsie Claim | Copper | Occurrence | MRDS | |
| Epoch | Iron | Prospect | MRDS | |
| Epoch Claim | Silver, Lead | Occurrence | MRDS | |
| Ernest Miller Prospect | Chromium | Occurrence | MRDS | |
| Federal Highway Administration | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Fidalgo Head | Stone | Occurrence | MRDS | |
| Fidalgo Island | Silver, Gold, Copper | Occurrence | MRDS | |
| Fidalgo Island | Copper | Prospect | MRDS | |
| Fourth Of July | Gold, Silver | Occurrence | MRDS | |
| Fourth Of July | Silver | Underground | Unknown | MRDS |
| Fred Wenrich | Stone | Surface | Past Producer | MRDS |
| Friday Creek | Clay | Surface | Unknown | MRDS |
| Friend | Lead, Silver | Occurrence | MRDS | |
| Friend | Silver | Occurrence | MRDS | |
| George Scott | Nickel | Occurrence | MRDS | |
| George Scott Claim | Nickel | Occurrence | MRDS | |
| Getchell-dehuff Property | Limestone, General | Surface | Prospect | MRDS |
| Goat Mtn | Limestone, Dimension | Surface | Unknown | MRDS |
| Gold Run | Gold | Occurrence | MRDS | |
| Gold Run | Gold | Prospect | MRDS | |
| Gorton Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Grand Republic | Lead, Silver, Gold | Occurrence | MRDS | |
| Grand Republic | Lead | Occurrence | MRDS | |
| Grandy Pit | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Granite | Silver | Occurrence | MRDS | |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Unknown | MRDS | |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Gravel Pits | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Great Northern Claims | Zinc, Silver, Gold | Occurrence | MRDS | |
| Hamilton | Iron, Manganese | Occurrence | MRDS | |
| Hamilton | Surface | Past Producer | MRDS | |
| Hamilton Claims | Iron | Past Producer | MRDS | |
| Hamilton Iron Deposit | Iron | Underground | Prospect | MRDS |
| Hamilton Mill | Olivine | Surface | Abandoned | MSHA |
| Hammond, Robert A. | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Hartford | Lead | Underground | Past Producer | MRDS |
| Hartford Claim | Lead, Silver | Occurrence | MRDS | |
| Hat Island | Stone | Occurrence | MRDS | |
| Hoage Lake Area | Limestone, General | Surface | Prospect | MRDS |
| Hornbeck | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Ianicki Quarry | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Iowa-olympia Claims | Lead, Silver | Occurrence | MRDS | |
| Island Frontier Landscape Const.co. | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Island Mine | Copper | Occurrence | MRDS | |
| J I Mayer | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| J. L. Tennyson Gravel | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Jackman Creek | Limestone, Dimension | Occurrence | MRDS | |
| Jackman Creek | Limestone, Dimension | Occurrence | MRDS | |
| James Stevens | Gemstone | Occurrence | MRDS | |
| John A. Stevens | Stone, Crushed/Broken | Surface | Unknown | MRDS |
| Johnsburg | Zinc, Silver, Copper, Gold, Lead | Occurrence | MRDS | |
| Johnsburg | Underground | Past Producer | MRDS | |
| Johnsburg | Kyanite | Surface | Occurrence | MRDS |
| Johnsburg Claims | Lead, Silver | Past Producer | MRDS | |
| Jones Creek | Graphite | Occurrence | MRDS | |
| Jordan Creek | Nickel | Occurrence | MRDS | |
| Jordan Creek | Nickel | Occurrence | MRDS | |
| Katie | Manganese | Prospect | MRDS | |
| Kildare | Lead | Underground | Unknown | MRDS |
| Kildare Claim | Zinc, Silver, Lead | Occurrence | MRDS | |
| La Conner | Nickel | Prospect | MRDS | |
| La Plant | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Lak Mcmurray | Flagstone | Occurrence | MRDS | |
| Lakeside Claims | Gold, Zinc, Silver, Lead | Occurrence | MRDS | |
| Last Chance | Chromium | Surface | Past Producer | MRDS |
| Last Chance Claim | Chromium | Past Producer | MRDS | |
| Last Chance Mine | Garnet | Occurrence | MRDS | |
| Lawrence | Copper | Prospect | MRDS | |
| Lawrence Claims | Copper | Occurrence | MRDS | |
| Leader | Chromium | Surface | Prospect | MRDS |
| Leader Claim | Chromium | Occurrence | MRDS | |
| Logan | Lead | Underground | Prospect | MRDS |
| Logan No 2 | Silver | Prospect | MRDS | |
| Logan No. 2 | Lead, Silver | Occurrence | MRDS | |
| Lyman | Asbestos | Surface | Past Producer | MRDS |
| Lyman | Talc-Soapstone | Occurrence | MRDS | |
| Mine 1 | Dimension Basalt | Surface | Abandoned | MSHA |
| Marble Creek | Limestone, Dimension | Occurrence | MRDS | |
| Marblemount Area | Talc-Soapstone | Occurrence | MRDS | |
| Marine Asphalt Co.inc. | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Matrix Property | Gold, Copper | Occurrence | MRDS | |
| Mayer City Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Mcmaster Claims | Chromium | Occurrence | MRDS | |
| Mcmaster And Alma Claims | Surface | Occurrence | MRDS | |
| Mcmyrl-wilson | Nickel | Occurrence | MRDS | |
| Meadow | Chromium | Surface | Prospect | MRDS |
| Meadow Claim | Chromium | Occurrence | MRDS | |
| Michigan | Silver, Lead | Occurrence | MRDS | |
| Michigan | Silver | Occurrence | MRDS | |
| Midas | Silver | Prospect | MRDS | |
| Midas Claims | Silver, Copper, Gold, Zinc, Lead | Occurrence | MRDS | |
| Mine 1 | Iron Ore | Surface | Abandoned | MSHA |
| Mineral Park | Quartz | Occurrence | MRDS | |
| Mount Eldorado | Mercury | Occurrence | MRDS | |
| Mount Vernon | Nickel, Gold | Occurrence | MRDS | |
| Mount Vernon | Chromium, Nickel, Gold | Occurrence | MRDS | |
| Mount Vernon | Nickel | Surface | Occurrence | MRDS |
| Mount Vernon | Stone, Crushed/Broken | Occurrence | MRDS | |
| Mount Vernon Deposit | Nickel, Gold | Surface | Prospect | MRDS |
| Mountain Home | Manganese | Occurrence | MRDS | |
| Mountain Home Claim | Copper, Manganese | Occurrence | MRDS | |
| Mt. Josephine | Nickel | Unknown | MRDS | |
| Nellie Kelly | Chromium | Occurrence | MRDS | |
| Nellie Kelly Claim | Chromium | Occurrence | MRDS | |
| Nielsen Brothers Inc | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Nookachamp Creek | Diatomite | Occurrence | MRDS | |
| Nookachamps Creek | Nickel, Arsenic | Occurrence | MRDS | |
| Nookachamps Creek | Nickel | Occurrence | MRDS | |
| Nookachamps Creek | Arsenic | Occurrence | MRDS | |
| Nookachamps Creek | Arsenic | Occurrence | MRDS | |
| Nooksack Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Nordlund Pit And Plant | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| North Coast | Gold | Underground | Unknown | MRDS |
| North Coast Mine | Copper, Silver, Gold | Occurrence | MRDS | |
| Northwest Talc & Magnesium Co | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Northwest Talc And Magnesium Co. | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Old Gray Mare | Zinc | Underground | Unknown | MRDS |
| Olivine Corp. | Magnesite | Surface-Underground | Unknown | MRDS |
| Olivine Hill | Chromium | Occurrence | MRDS | |
| Ontario | Lead | Occurrence | MRDS | |
| Ontario Claim | Gold, Silver, Lead | Occurrence | MRDS | |
| Oso | Stone | Occurrence | MRDS | |
| Pay Streak | Limestone, Dimension | Surface | Unknown | MRDS |
| Pioneer | Silver | Prospect | MRDS | |
| Pioneer Claims | Silver | Occurrence | MRDS | |
| Pittsburg | Prospect | MRDS | ||
| Portable Crush Plant | Sand, Common | Surface | Intermittent | MSHA |
| Portland | Limestone, Dimension | Surface | Unknown | MRDS |
| Powell Creek | Nickel | Occurrence | MRDS | |
| Powell Creek | Nickel | Occurrence | MRDS | |
| Prairie | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Prairie | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Pressentin | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Protection | Copper, Zinc, Lead | Occurrence | MRDS | |
| Protection | Lead | Prospect | MRDS | |
| Quarry | Stone | Surface | Unknown | MRDS |
| Quarry | Stone | Surface | Unknown | MRDS |
| Queen And Buchanan | Lead, Copper | Occurrence | MRDS | |
| Queen And Buchanan | Copper | Underground | Unknown | MRDS |
| Rainbow Claim | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Ready Cash | Chromium | Occurrence | MRDS | |
| Ready Cash | Surface | Past Producer | MRDS | |
| Ready Cash Claim | Chromium | Past Producer | MRDS | |
| Riverside Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Rockport | Calcium | Occurrence | MRDS | |
| Rockport | Limestone, Dimension | Surface | Unknown | MRDS |
| Rockport Pit | Construction Sand and Gravel | Surface | Intermittent | MSHA |
| Rockport Quarry Llc | Crushed, Broken Basalt | Surface | Abandoned | MSHA |
| Rogers | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Rouse | Lead | Underground | Prospect | MRDS |
| Saddlebag Island | Stone | Occurrence | MRDS | |
| Sadie Cudworth | Talc-Soapstone | Surface | Past Producer | MRDS |
| Samish Bay | Manganese | Occurrence | MRDS | |
| Samish Bay | Manganese | Occurrence | MRDS | |
| Samish Pit | Construction Sand and Gravel | Surface | Abandoned | MSHA |
| Sand And Gravel | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sand And Gravel Pit | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sauk | Limestone, Dimension | Occurrence | MRDS | |
| Sawmill | Palladium | Surface | Unknown | MRDS |
| Scott | Asbestos | Occurrence | MRDS | |
| Scott | Nickel | Occurrence | MRDS | |
| Sedro Woolley | Stone, Crushed/Broken | Surface | Unknown | MRDS |
| Sierra Grande | Lead | Occurrence | MRDS | |
| Sierra Grande Claim | Gold, Silver, Lead | Occurrence | MRDS | |
| Silica Camp | Stone, Crushed/Broken | Surface-Underground | Past Producer | MRDS |
| Silica Claim | Silica | Surface | Occurrence | MRDS |
| Silver Queen | Copper, Zinc, Silver, Lead | Occurrence | MRDS | |
| Silver Queen | Copper | Surface-Underground | Unknown | MRDS |
| Silver Tip | Lead | Surface-Underground | Prospect | MRDS |
| Silver Tip Claims | Gold, Zinc, Silver, Lead | Occurrence | MRDS | |
| Skagit County Road Department | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Skagit Copperr | Copper | Prospect | MRDS | |
| Skagit Queen | Silver | Prospect | MRDS | |
| Skagit Queen Claims | Lead, Silver | Occurrence | MRDS | |
| Skagit River | Graphite | Occurrence | MRDS | |
| Skagit River | Pumice | Prospect | MRDS | |
| Skagit River | Graphite | Surface | Prospect | MRDS |
| Skagit River Bar & Partable Plant | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Skoal Talc Mine | Talc-Soapstone | Underground | Prospect | MRDS |
| Sluss | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Smith | Chromium | Prospect | MRDS | |
| Smith Claim | Chromium | Occurrence | MRDS | |
| Smith Open Cut | Chromium | Occurrence | MRDS | |
| Smith Open Cut | Chromium | Prospect | MRDS | |
| Soldier Boy | Gold | Prospect | MRDS | |
| Soldier Boy Claim | Copper, Zinc, Gold | Occurrence | MRDS | |
| Stenmo | Silver, Lead, Zinc | Occurrence | MRDS | |
| Stenmo | Lead | Surface-Underground | Unknown | MRDS |
| Stephens | Copper, Gold, Silver | Occurrence | MRDS | |
| Stephens | Copper, Gold, Silver | Past Producer | MRDS | |
| Stephens | Nickel | Occurrence | MRDS | |
| Stephens | Nickel | Occurrence | MRDS | |
| Stephens | Copper | Underground | Past Producer | MRDS |
| Stoner | Stone, Crushed/Broken | Surface-Underground | Past Producer | MRDS |
| Suiattle River | Graphite | Occurrence | MRDS | |
| Summit Timber Co | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Sutter Creek | Limestone, Dimension | Surface | Unknown | MRDS |
| Sutter Mt | Limestone, Dimension | Surface | Unknown | MRDS |
| Sweden | Copper | Underground | Past Producer | MRDS |
| Swinomish Bay | Magnesite | Surface | Occurrence | MRDS |
| Telstar Claims | Silver | Prospect | MRDS | |
| Tennyson Gravel Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| The Sanwick Corp. | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Thornwood | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Three Lakes | Surface | Prospect | MRDS | |
| Three Lakes Group | Chromium | Occurrence | MRDS | |
| Three Lakes North | Chromium | Prospect | MRDS | |
| Three Lakes South | Chromium | Surface | Prospect | MRDS |
| Three Mile Creek | Limestone, Dimension | Surface | Unknown | MRDS |
| Thunder Creek | Gold, Copper, Zinc, Silver, Lead | Occurrence | MRDS | |
| Thunder Creek | Zinc | Underground | Prospect | MRDS |
| Thunder Mountain Claims | Gold, Copper, Zinc, Lead, Silver | Occurrence | MRDS | |
| Tilon | Clay | Surface | Past Producer | MRDS |
| Twin Sister Magnesium & Chrome Corp | Chromium | Occurrence | MRDS | |
| Twin Sisters Mtns | Chromium | Occurrence | MRDS | |
| Twin Sisters Pit And Mill | Stone, Crushed/Broken | Surface | Past Producer | MRDS |
| Twins Group | Surface | Occurrence | MRDS | |
| Twins Group | Surface | Occurrence | MRDS | |
| United Campground, Inc | Sand and Gravel, Construction | Unknown | MRDS | |
| Unknown Mine | Calcium | Unknown | MRDS | |
| Unknown Mine | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Unnamed Pit | Sand and Gravel, Construction | Surface | Past Producer | MRDS |
| Unnamed Sand And Gravel | Sand and Gravel, Construction | Surface-Underground | Unknown | MRDS |
| Utopia | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Ventura | Gold, Lead, Silver | Occurrence | MRDS | |
| Ventura | Silver | Prospect | MRDS | |
| Walker Valley | Nickel | Occurrence | MRDS | |
| Walker Valley | Nickel | Occurrence | MRDS | |
| Wash Marble & Building Stone | Stone | Unknown | MRDS | |
| Washington | Molybdenum | Occurrence | MRDS | |
| Washington Crushers Inc. | Stone, Crushed/Broken | Surface-Underground | Unknown | MRDS |
| Washington Gem Jade Co. | Gemstone | Surface-Underground | Unknown | MRDS |
| Washington Monument Deposit | Limestone, General | Surface | Occurrence | MRDS |
| Webber | Limestone, Dimension | Surface | Unknown | MRDS |
| West Seattle | Lead | Underground | Past Producer | MRDS |
| West Seattle Claim | Zinc, Silver, Lead | Occurrence | MRDS | |
| White | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Whitmarsh | Sand and Gravel, Construction | Surface | Unknown | MRDS |
| Willis And Everett | Gold, Silver, Lead | Occurrence | MRDS | |
| Willis And Everett | Silver | Underground | Past Producer | MRDS |
| Willis And Everett Claims | Silver | Past Producer | MRDS |