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Securing Arizona's Water Future
Geography of the Tiger Wash Basin

The Tiger Wash Basin, located in the northeastern part of the planning area is 74 square miles in area, the smallest basin in the planning area and the state.  Geographic features and principal places are shown on Figure 7.9-1.  The basin is characterized by a valley bordered by mountain ranges. Vegetation types include Lower Colorado River Valley and Arizona uplands Sonoran desertscrub and a small amount of southwestern interior chaparral near the northwestern basin boundary. (See Figure 7.0-9)

Principal geographic features shown on Figure 7.9-1 are:

  • Tiger Wash in the center of the basin
  • Harquahala Mountains in the northern portion of the basin and the Big Horn Mountains in the southern portion of the basin with the highest point at 2,724 feet.
  • The lowest point is approximately 1,950 feet where Tiger Wash exits the basin southeast of Ambrosia Mill.

Click here for Figure 7.9-1

Figure 7.9-1 Tiger Wash Basin Geographic Features

 

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References and Supplemental Reading for the Tiger Wash Basin

Colorado River
Lower Colorado River Planning Area
Click to download Volume 7
Ambrosia Mill
Tiger Wash