Eastman Lake
H. V. Eastman Lake is an artificial lake formed by the construction of Buchanan Dam across the Chowchilla River in the foothills of Madera County, California. A small percentage of the northwest area of the reservoir is in Mariposa County.
Buchanan Dam was a 1975 flood control and irrigation project of the United States Army Corps of Engineers. The earthen dam, 218 feet high with a length of 1746 feet at the crest, impounding a maximum capacity of 150,000 acre-feet of Chowchilla River water in the reservoir, is owned and operated by the Corps.
