Abiquiu Reservoir is a reservoir in Rio Arriba County, New Mexico, United States. Water of the Rio Chama is impounded by the earth-filled Abiquiu Dam, 1,800 feet (550 m) long and 340 feet (100 m) high, completed in 1963 and raised in 1986. The 5,200-acre (21 km2) lake is over 12 miles (19 km) long, and lies at elevations of 6,100–6,220 feet (1,859–1,896 m).