Blowhole Cave is a cave in Utah County, Utah, United States to the west of Utah Lake. The cave is owned by the Utah School and Institutional Trust Lands Administration (SITLA) and is managed by the Timpanogos Grotto of the National Speleological Society. A cave gate was installed April 25-26, 2006.
Blowhole cave is very warm (more than 80° F) and moist. Total surveyed length is 1,165 ft., and total depth is 340 ft. Blowhole Cave is the 9th deepest cave in Utah. To explore the cave, approximately 400 ft of rope is needed. The most notable formation inside the cave is the Navajo Blanket, a wall composed of brown, tan, red, white, and gray rock.