Principal geographic features shown on Figure 7.4-1 are:
- The Colorado River on the western basin boundary in the vicinity of Fishers Landing
- The Gila River running east to west through the center of the basin
- Numerous valleys and plains including Mohawk, San Cristobal, Growler and Childs Valleys in the southern portion of the basin and Castle Dome and Palomas Plains and King and Hyder Valleys in the northern portion of the basin
- Mountain ranges including the Cabeza Prieta, Mohawk, Granite and Growler Mountains in the southern portion of the basin and the Castle Dome, Tank, Kofa and Gila Bend Mountains in the northern portion of the basin
- The highest point in the basin, Castle Dome Peak, at 3,788 feet in the Castle Dome Mountains west of Fishers Landing
- The lowest point in the basin at 160 feet west of Dome where the Gila River exits the basin.
Figure 7.4-1 Lower Gila Basin Geographic Features