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MLRA 39 - Arizona and New Mexico Mountains

Arizona,Colorado, New Mexico,and Utah
111,140 km2 (42,910 mi2)

Water:
This MLRA supplies water for much of the adjoining irrigated areas. Because more than one-half of the annual precipitation occurs in winter, there is a general deficiency of moisture during the growing season. Several of the larger streams and a few of their larger tributaries maintain a yearlong flow. Much of this water is stored in reservoirs near or below the southern edge of the area and is used for irrigation and for municipal water supplies in the Central Arizona Basin and Range major land resource area. Small natural and artificial lakes at higher elevations are used for fishing and other recreation. Annual runoff into all reservoirs is highly variable, and most of the smaller lakes and reservoirs are dry in some years. Ground water is limited and usually occurs at great depth.


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Comments and Questions

12/16/98