|Location||Apache County, Arizona|
|Basin countries||United States|
|Surface area||1,400 acres (570 ha)|
|Average depth||22 ft (6.7 m)|
|Surface elevation||5,980 ft (1,820 m)|
The Lyman Reservoir is the largest lake in the region. Lyman Lake State Park, is located in and administered by the Apache-Sitgreaves National Forest, attracts anglers, as well as campers and water skiers year-round.
Lyman Reservoir is located 17 miles (27 km) north of Springerville.
An irrigation impoundment on the Little Colorado River, Lyman Reservoir consists of 1,400 acres (570 ha) situated at 5,980 feet (1,820 m). The lake lies entirely within Lyman Lake State Park. Water levels fluctuate, but when full, the average depth is 22 feet (6.7 m), with a maximum depth of 57 feet (17 m). Lyman Reservoir is a warm water reservoir containing largemouth bass, channel catfish, green sunfish, carp and a few walleye.
The State Parks and Recreation Department maintains year-round visitor amenities. In the summer, there are interpretive tours of nearby petroglyphs.