| ★ | 🪨 Historic Thorp Grist Mill Stone--Thorp, Washington | | 112 | Estados Unidos | |
| 8 | 🪨 Ice Age Glacial Silt and Puget Sound Brick, Washington | | 720 | Estados Unidos | 87 |
| 10 | 🪨 Worn Brick vs. Rock ID'd--Seattle, Washington | | 709 | Estados Unidos | 86 |
| 16 | 🪨 Huge Volcanic Mudflow Boulder--Evidence of an Ancient Lahar--Thorp, Washington | | 648 | Estados Unidos | 85 |
| 19 | 🪨 Basalt Pillow Lava Delta--Vantage Area, Washington | | 556 | Estados Unidos | 85 |
| 9 | 🪨 Historic Arrastra Gold Mill Model--Liberty, Washington | | 382 | Estados Unidos | 86 |
| 1 | 🪨 Historic Wood Pulp Stone Grinder--West Lynn, Oregon | | 352 | Estados Unidos | 89 |
| 17 | 🪨 Beach Erosion at Point Defiance, Tacoma, Washington | | 346 | Estados Unidos | 85 |
| 11 | 🪨 Historic Coke Oven--Wilkeson, Washington | | 343 | Estados Unidos | 86 |
| 4 | 🪨 More Odd Jointing and Vesicles in Slag--Tacoma, Washington | | 248 | Estados Unidos | 87 |
| 2 | 🪨 Old USCGS Survey Stone, Tacoma, Washington | | 237 | Estados Unidos | 88 |
| 13 | 🪨 Xenoliths on Weathered Surfaces and in Cut Stone--Index, Washington | | 210 | Estados Unidos | 86 |
| 6 | 🪨 Iceberg Dropstone Sediments--Tacoma, Washington | | 208 | Estados Unidos | 87 |
| 18 | 🪨 Historic Milepost Survey Marker, Portland, Oregon | | 198 | Estados Unidos | 85 |
| 15 | 🪨 Concrete vs. Rock ID’d—Seattle, Washington | | 189 | Estados Unidos | 86 |
| 20 | 🪨 This Boulder's Intrusion is Harder than the Rock Around It | | 184 | Estados Unidos | 85 |
| 5 | 🪨 Wilkeson Arch, Coal, Coke Ovens, and Sandstone--Wilkeson, Washington | | 163 | Estados Unidos | 87 |
| 7 | 🪨 Land Surveying Monument, Bellingham, Washington | | 153 | Estados Unidos | 87 |
| 3 | 🪨 Seattle Birthplace Monument at Alki Beach--Seattle, Washington | | 145 | Estados Unidos | 88 |
| 12 | 🪨 Tumbled Beach Brick--Compared to Rock Identified | | 133 | Estados Unidos | 86 |
| 14 | A Most Unusual Find--Three Rocks, One Love Story | | 99 | Estados Unidos | 86 |