| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Sand Island Placer, Sand Island, Clatsop County, Oregon, USA | 46° 16' 29" N | 124° 1' 9" W | 4.2km (2.6 miles) | |
| Hammond Black Sand Locality No. 2 Prospect (Hammond-McGowan-Columbia Placer), Warrenton, Clatsop County, Oregon, USA | 46° 12' 2" N | 123° 57' 16" W | 13.8km (8.6 miles) | |
| Hammond Black Sand Locality No. 1 Prospect, Warrenton, Clatsop County, Oregon, USA | 46° 11' 44" N | 123° 56' 13" W | 15.0km (9.3 miles) | |
| Columbia River Bar, Warrenton, Clatsop County, Oregon, USA | 46° 11' 31" N | 123° 55' 48" W | 15.6km (9.7 miles) | |
| Megler, Pacific County, Washington, USA | 46° 15' 0" N | 123° 51' 19" W | 15.8km (9.8 miles) | |
| Astoria, Clatsop County, Oregon, USA | 46° 11' 16" N | 123° 49' 52" W | 21.1km (13.1 miles) | |
| Endicott Pit, Warrenton, Clatsop County, Oregon, USA | 46° 8' 47" N | 123° 53' 41" W | 21.4km (13.3 miles) | |
| Sunset Quarry & Mill, Astoria, Clatsop County, Oregon, USA | 46° 11' 12" N | 123° 49' 17" W | 21.8km (13.5 miles) | |
| Unnamed Stone Pit (MRDS - 10128116), Astoria, Clatsop County, Oregon, USA | 46° 10' 51" N | 123° 48' 37" W | 22.9km (14.2 miles) | |
| Astoria Landfill, Astoria, Clatsop County, Oregon, USA | 46° 10' 23" N | 123° 48' 46" W | 23.3km (14.5 miles) | |
| Unnamed Flagstone Pit (MRDS - 10200944), Clatsop County, Oregon, USA | 46° 9' 26" N | 123° 45' 26" W | 27.7km (17.2 miles) | |
| Unnamed Basalt quarry (Columbia River dikes), Altoona, Wahkiakum County, Washington, USA | 46° 16' 18" N | 123° 40' 36" W | 28.4km (17.7 miles) | |
| Altoona-Pillar Rock Road roadcuts, Altoona, Wahkiakum County, Washington, USA | 46° 16' 0" N | 123° 39' 18" W | 30.2km (18.8 miles) | |
| Curved Quartz Roadcut, Altoona, Wahkiakum County, Washington, USA | 46° 15' 55" N | 123° 37' 56" W | 31.9km (19.8 miles) | |
| Olney, Clatsop County, Oregon, USA | 46° 6' 0" N | 123° 45' 27" W | 32.0km (19.9 miles) | |
| Clatsop Peat Soils, Clatsop County, Oregon, USA | 46° 2' 8" N | 123° 54' 7" W | 32.3km (20.1 miles) | |
| Nygaard Loggin Pit, Olney, Clatsop County, Oregon, USA | 46° 6' 2" N | 123° 44' 44" W | 32.5km (20.2 miles) | |
| Unnamed Stone Pit (MRDS - 10159715), Olney, Clatsop County, Oregon, USA | 46° 6' 1" N | 123° 44' 45" W | 32.6km (20.2 miles) | |
| Drake Pit (Floyd Graham Construction Company), Clatsop County, Oregon, USA | 46° 3' 55" N | 123° 47' 17" W | 33.5km (20.8 miles) | |
| McAllister quarry (Browning quarry), Olney, Clatsop County, Oregon, USA | 46° 5' 38" N | 123° 44' 21" W | 33.5km (20.8 miles) | |
| Quarry (MRDS - 10052497), Olney, Clatsop County, Oregon, USA | 46° 5' 36" N | 123° 44' 9" W | 33.6km (20.9 miles) | |
| Olney Quarry, Olney, Clatsop County, Oregon, USA | 46° 5' 22" N | 123° 43' 41" W | 34.4km (21.4 miles) | |
| Pit 11, Seaside, Clatsop County, Oregon, USA | 45° 59' 30" N | 123° 55' 32" W | 36.4km (22.6 miles) | |
| Onley Clay Deposit (Barth Clay), Olney, Clatsop County, Oregon, USA | 46° 4' 9" N | 123° 41' 34" W | 37.9km (23.6 miles) | |
| Barth Falls 2 (Bigby), Olney, Clatsop County, Oregon, USA | 46° 3' 34" N | 123° 40' 49" W | 39.4km (24.5 miles) | |
| Barth Falls 1 Quarry, Olney, Clatsop County, Oregon, USA | 46° 3' 45" N | 123° 40' 29" W | 39.4km (24.5 miles) | |
| Big Creek Pit 1, Svensen, Clatsop County, Oregon, USA | 46° 8' 48" N | 123° 35' 3" W | 39.6km (24.6 miles) | |
| Brownsmead, Clatsop County, Oregon, USA | 46° 13' 3" N | 123° 32' 26" W | 39.9km (24.8 miles) | |
| Rippet Pit (Crown Zellerbach 2), Seaside, Clatsop County, Oregon, USA | 45° 57' 3" N | 123° 55' 54" W | 40.7km (25.3 miles) | |
| P M West Clay, Seaside, Clatsop County, Oregon, USA | 45° 56' 53" N | 123° 55' 57" W | 41.0km (25.5 miles) | |
