Having described the San Rafael Swell in an earlier post, I invite you to look back and refresh your mental image of this unique area (Here). The San Rafael Reef is a thirty mile long anticline within the swell, where the earth's crust was lifted to the point of breaking. The jagged edges of the broken crust have been eroded to form numerous canyons and rock formations. Interstate 70 runs through the reef, giving travelers a special view of this incredible landscape. A rest area sign above Black Dragon Canyon gives a little more information about the geology of the area, while another at Spotted Wolf Canyon provides insight into the highway's construction.
During my travels out West . . I always wished I'd have paid more attention in my geology class .. but what did they expect when they scheduled it for 8 am TTS. . Judy Fleming
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