Tuesday, March 03, 2009

The Drive of Laccoliths

Okay. What is a laccolith? It is a mushroom shaped intrusion now exposed as snowed covered mountains in the area of southwestern Colorado and southeastern Utah. They were formed about 20 to 30 million years ago and as Helen and I made our way from Durango to Moab, we passed some real gems.

The Sleeping Ute Mountain or laccolith, located near Cortez, Colorado. Can you see the sleeping Ute with his headdress and arms folded across his chest?

The Abajo or Blue Mountains laccolith near Monticello, Utah

The La Sal Mountain laccolith near Moab, Utah


  1. Your book signing tour sounds wonderful; got any ideas for including these sites in our trip in October?
    thinking of both of you and sending love. Roz & Jim

  2. Wayne,
    Having spent nearly a decade in Moab, I, too, am a big fan of laccoliths. My favorite definition is that laccoliths are a hot hump between the sheets.


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