September 11, 2021
The young woman at the drive-through coffee stand said we shouldn’t miss Abert Rim so we drove north on Highway 395 to see what she was talking about.
The Rim is a fault scarp formed when lava several thousand feet thick covered the land broke into huge blocks and then became tilted. At 2,500 feet, the Abert Rim is one of the highest scarps in the U.S, and at 30 miles long is the longest exposed fault scarp in North America. You can think of the Rim as one edge of one of the tilted blocks. Scarps often occur in the Basin and Range province shown in the map below.
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