Johnstone Spring is locate in the Black Rock Range.
The 1946 Biennial Report of the Nevada State Engineer states that B. F. Porter Estate was using Johnstone Spring for stock watering. The estate was also using water from Chipmunk Spring, Crowbar Spring and Whiterock Spring.
Johnstone Spring might be named for George D. Johnstone.
Samuel K. Johnstone lived at Summit Lake in 1940. In 1942, several Johnstones were named as defendents in a lawsuit brought by the Federal Government to establish the Black Rock Desert Gunnery Range.
- 1946 Biennial Report of the Nevada State Engineer," p. 110, 117, 1946.
- Good Returns on Washoe Ore," November 9, 1913. "The Mackey mines, consisting of 13 claims, controlled by A. P. Mackey of Denver, adjoining the Tohoqua have been taken over under a long term lease by George D. Johnstone and associates of Los Angeles." This connection to Johnstone Spring is a longshot
- 1940 Census
- Nevada State Journal, "Army Wants Desert Land," p. 10, October 17, 1942.