Lake Size: 17,000 acres (6,900 ha)
Shoreline Length (Miles): 158 miles
Deepest Depth: 80 ft
Latitude: 34.232222
Longitude: -113.602778
Lake Level Above Sea Level: 1,237 ft
Counties: Phoenix County
Cities: Prescott, Lake Havasu City, Surprise
Lake Management: U.S. National Park Service

Information: Alamo Lake itself is formed by the Alamo Dam that are part of the Alamo Lake State Park administered by the U.S. National Park Service. The lake impounds runoff from the Bill Williams River, an intermittent tributary of the Colorado River. The dam was constructed in 1968 by the Army Corps of Engineers, primarily for flood control purposes. The dam is an earthfill dam that rises 283 feet (86 m) from the streambed. While the Bill Williams River is often dry, heavy seasonal rains maintain the lake's depth. During extreme flood events the reservoir can fill rapidly; the lake has been recorded to rise 11 feet (3.4 m) in a single night due to extreme flooding. Unusually high flows during the 1970s and 1980s increased the depth and size of the reservoir to unexpected levels, giving birth to recreational and fishing possibilities. Since then, the lake has been stocked with numerous fish species, including largemouth bass, crappie, sunfish, channel catfish, flathead catfish and tilapia.