Crawford Reservoir and Needlrock

by Eric Rundle

Title

Crawford Reservoir and Needlrock

Artist

Eric Rundle

Medium

Photograph - Photographs

Description

Coal Mountain, Sleeping Indian and Needle Rock in the background are being reflected in Crawford reservoir.
Needle Rock is an intrusive of rhyodacite volcanic plug located at the west border of the Gunnison National Forest, in the Needle Rock Natural Area near Crawford in the U.S. state of Colorado. It stands 800 feet (240 m) tall above the floor of the Smith Fork of the Gunnison River valley. It originated as the throat of a large volcano about 28 million years ago in the Miocene geological epoch, when molten rock intruded between existing sedimentary rocks. The plug may represent the eroded conduit of a laccolith.



Crawford Reservoir was created with the construction of Crawford Dam is an earthfill structure 162 feet high and 580 feet long, with a volume of 1,006,000 cubic yards. The uncontrolled overflow spillway is in the left abutment of the dam and has a capacity of 1,400 cubic feet per second. The outlet works in the right abutment of the dam carries water through a 34-inch-diameter steel pipe controlled by four 2.25-foot-square high-pressure gates. Maximum discharge capacity to Aspen Canal is 125 cubic feet per second. Crawford Reservoir has a total capacity of 14,395 acre-feet and an active capacity of 14,064 acre-feet. The reservoir has a surface area of 406.2 acres.

Uploaded

January 23rd, 2013

Statistics

Viewed 847 Times  -  Last Visitor from Cambridge, MA on 04/19/2024 at 7:54 AM

Colors

Embed

Share

Sales Sheet

Tags