The Douglas Basin is a medium-size, 949 square mile basin located in the southern portion of the planning area.  Geographic features and principal communities are shown on Figure 3.5-1.   The basin is characterized by a large valley, the Sulphur Springs Valley, running north-south down the center of the basin.  Vegetation is primarily semi-desert grassland with smaller areas of Chihuahuan desertscrub. (see Figure 3.0-9)   Riparian vegetation includes cottonwood/willow along Leslie Creek.

Principal geographic features shown on Figure 3.5-1 are:

• Whitewater Draw running north-south down the center of the basin to Douglas

• Mule Mountains along the southwestern basin boundary near Bisbee

• Perilla Mountains east of Douglas and the Swisshelm Mountains east of Elfrida

• The southern end of the Dragoon Mountains are northwest of Elfrida, which include the highest point in the basin at 6,986 feet

• The lowest point in the basin at 4,100 feet in the Sulphur Springs Valley located near Pirtleville