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Mexican Hat Rock

ca. 1935

1998

Description:

MEXICAN HAT ROCK There appears to have been a decrease in shadscale plants with a corresponding increase in grasses such as cheatgrass, Indian ricegrass, and curlygrass, resulting in a slight increase in plant soil cover. The rills and small gullies visible in the 1930s photograph have healed and they are not as evident in 1995. The shallow Moenkopie derived soils and a 6.50 average annual precipitation level makes this a harsh range site. Improvements are slow in such areas. Considerable off-highway vehicle use in the general area is causing soil disturbance and loss of vegetation cover.

Vegetative Community:

Salt Desert Shrub

Location:

San Juan

January 2018