The Tetons across the lake
Wyoming · 10 August 2021

There are no foothills, which is what makes this range look the way it does. The Tetons rise straight off the valley floor - a little over two thousand metres of relief in one step - because they sit on the up-thrown side of an active fault and the valley sits on the down-thrown side.
The mountains are also older rock than almost anything around them. The core is gneiss, in the region of 2.7 billion years old, carried up by a fault that only started moving about ten million years ago.
Birds, insects, plants and other wildlife, mostly from Brooklyn, with some from further afield.
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