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Last modified
1/26/2010 12:33:49 PM
Creation date
10/11/2006 10:47:35 PM
Metadata
Fields
Template:
Water Supply Protection
File Number
8200.750
Description
San Juan River General
State
CO
Basin
San Juan/Dolores
Water Division
7
Date
12/1/1959
Author
Clifford H Jex
Title
A Report on the Water Resources of the San Juan River Basin in Colorado - December 1959
Water Supply Pro - Doc Type
Report/Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />001795 <br /> <br />The area of the drainage basin is 25,230 square miles. Of this <br />5,889 square miles, or 23.3%, is in Colorado; 9,646 square miles, or <br />38.3%, is in New Mexico; 5,222 square miles, or 20.7%, is in Arizona; <br />and 4,473 square miles, or 17.7% is in Utah. <br />River runoff largely originates in Colorado, on the western slope <br />of the Continental Divide and the southern slope of the San Juan Range. <br />The watershed in the other three states contributes very little water <br />to the flow of the river. The two mountain ranges in the Colorado portion <br />of the watershed have over thirty peaks with elevations in excess of <br />13,000 feet. A major portion of the watershed area of the other three <br />states is below an elevation of 6,500 feet. This area has very low <br />precipitation. <br /> <br />Basin Runoff <br /> <br /> <br />Stream flow information on the San Juan River at its junction with <br /> <br /> <br />the Colorado is unavailable. The river is gaged near Bluff, Utah, 140 <br /> <br /> <br />miles upstream from this junction and 220 miles upstream from river <br /> <br /> <br />compact point, Lee Ferry, Arizona. Below the Bluff station river losses <br /> <br /> <br />exceed inflow. <br /> <br /> <br />Data on annual runoff of the San Juan River at the Bluff, Utah, <br /> <br /> <br />station and the runoff of the Colorado River at Lee Ferry are presented <br /> <br /> <br />in the following Table I: <br /> <br />-2- <br /> <br />, lil' ,~"-' <br />
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