Horse Mesa Dam

Horse Mesa Dam is named for nearby Horse Mesa, where thieves sometimes hid stolen herds. The dam was constructed between 1924-27. It is 305 feet high and 660 feet long.

It has three conventional hydroelectric generating units rated at a total of 32,000 kW and one pumped storage hydroelectric unit added in 1972 and rated at 97,000 kW.

Apache lake

Horse Mesa Dam forms Apache Lake. Below are some lake statistics:

  • Length: 17 miles
  • Shoreline: 41 miles
  • Capacity: 245,138 acre-feet
  • Surface acreage when full: 2,656 acres
  • Maximum depth: 255 feet