| Locality type: | Occurrence |
| Classification |
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| Type: | Basalt |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Basalt data |
| Locality Data: | Click here to view Portland Tunnel Occurrence, Multnomah County, Oregon, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1056550 |
| Long-form Identifier: | 1:3:1056550:6 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Basalt |
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| 13.9km (8.7 miles) | ⓘBurnt Bridge Creek, Clark County, Washington, USA |
| 15.4km (9.6 miles) | ⓘTualatin Mountains Bauxite Occurrence, Washington County, Oregon, USA |
| 24.7km (15.4 miles) | ⓘScapoose - St Helens Bauxite Occurrence, Columbia County, Oregon, USA |
| 25.0km (15.5 miles) | ⓘDixie Mountain Bauxite Occurrence (Hutchison-Nixon), Washington County, Oregon, USA |
| 29.0km (18.0 miles) | ⓘPumpkin Ridge Bauxite Occurrence, Washington County, Oregon, USA |
| 30.2km (18.8 miles) | ⓘScappoose Iron Occurrence (Oregon Charcoal Iron; Colport-Charcoal Iron), Columbia County, Oregon, USA |
| 31.7km (19.7 miles) | ⓘScappoose Iron (Bunker Hill; Ironcrest; Ladysmith), Columbia County, Oregon, USA |
| 32.6km (20.3 miles) | ⓘRed Flat Hill Bauxite Occurrence, Washington County, Oregon, USA |
| 35.7km (22.2 miles) | ⓘUnnamed quarry, Skamania County, Washington, USA |
| 39.4km (24.5 miles) | ⓘYamhill Bauxite Occurrence, Yamhill, Yamhill County, Oregon, USA |
| References |
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