northern exposures, travels


This is an exposure of the Tolovana limestone formation. Prospectors in the early 1900’s named the White Mountains after it. There are natural bridges, arches, underground streams, cold springs, sinkholes and caves in the underlying limestone. Geologists call this a karst landscape, very rare at high latitudes; they are more commonly associated with temperate regions. The White Mountains have long been designated as a National Recreation Area and protected from commercial interests and road development. But there are gold and other rare earth minerals here, and the Bureau of Land Management is evaluating whether to open large tracts for mining.


5 thoughts on “White

    1. Oh, it’s you, Pete! What’s with the Grumpy? I don’t recall that before. Are we going to see you when we are in Fairbanks next week?

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