
Columbia River Basalt Group Stretches from Oregon to Idaho14 Neerim North Basalt Quarry VRO Agriculture Victoria
The Columbia River Basalt Group CRBG is the youngest smallest and one of the best preserved continental flood basalt province on Earth covering over 210 000 km 2 of mainly eastern Oregon and Washington western Idaho and part of northern NevadaLand reclamation projects which may occur after the quarry is abandoned should preserve at least one quarry face in which the columnar jointing is well developed Columnar jointing in Older Volcanics basalt Neerim North quarry
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