The park is located in western Arizona about 38 miles (61 km) north of Wenden.

[3][citation needed] Alamo Lake State Park features camping facilities and attracts wildlife enthusiasts, as the park is home to numerous wildlife species including the bald eagle.

The dam was constructed in 1968 by the Army Corps of Engineers, primarily for flood control purposes.

While the Bill Williams River is often dry, heavy seasonal rains maintain the lake's depth.

[3] 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.