[2] Lying four miles (6 km) west of the town of Chloride, Grasshopper Junction provides access to a lone surviving mining camp along County Road 125.

[6] At the time, the population of Grasshopper Junction was two, and the first session of the 86th United States Congress determined that the estimated radiation dose received by the Grasshopper Junction population was 0.03 roentgen (8 microcoulombs per kilogram) before Operation Plumbbob (Pre-Plumbbob) and 0.03 roentgen (8 μC/kg) after Operation Hardtack II (Cumulative).

[7] From 1988 to 1991, Grasshopper Junction had a population of six, which included Dean Morrison and Jackie Appelhans as co-owners of a store and restaurant and their four children.

[9] In July 2005, the 10,600-acre (43 km2) Twin Mills wildfire was ignited by lightning and burned Grasshopper Junction, which received air drops of flame retardant.

[11] Residing in the Detrital basin, the ground water in Grasshopper Junction is contained in a basin-fill aquifer and other water-bearing sediments at a depth of approximately 11 feet (3.4 m) below the land surface.