This picture taken on Route 12 just a few miles West of White Pass, Washington. The gigantic wall that one sees in front of them is actually cooled Dactite Lava from an volcanic eruption nine miles away that took place some 20,000 years ago or more. Geologists still don't know for sure what blocked the lava flow, maybe a glacier or cliff. The fractures they feel are a result of the edge of the lava flow cooling much faster than the rest of the flow. Amazing!
Reminds me that you are driving atop a fault line....be careful! :-)
ReplyDeletenature still continues to be the most amazing thing!!!
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