Great Boiling Spring Park is a historical name for a former park that was on private property near Gerlach, Nevada, in a region known as the Black Rock Desert. The spring is not currently accessible by the public and has not been so since the 1990s. The park is on top of one of Nevada's most geothermically active regions, and contains dozens of hot springs and thermal pools. Great Boiling Spring is fenced off to keep swimmers out.