Kuna Caves--Kuna, Idaho

 

The Kuna Caves (or Kuna Cave) is a lava tube cave south of Kuna, Idaho, with a public entrance, an opening in the ground with a caged ladder leading down into the main cavern.

Background

The cave is about 50 feet (15 m) deep and runs about a quarter mile north and around 1,000 feet (300 m) south from the entrance. The southern portion of the cave requires crawling through a trench dug out of the clay floor of the cave, leading to a small space approximately 3 feet (0.91 m) wide by 3 feet (0.91 m) tall by 4 feet (1.2 m) long in which you can turn around to return to the main [cavern]. The interior temperature of the cave hovers around 56 °F (13 °C) year-round. A logbook was placed deep in the North end of the cave for people to sign in 2018.

Local Culture

According to locals, at one time the system had been much larger and was composed of multiple caves, even stretching to the Snake River, before the United States Army Corps of Engineers blocked it off by detonating dynamite, collapsing a portion of the cave.

Controversy

The official Bureau of Land Management stance on the cave is that it should not be visited by the general public. Traveling to the caves involves driving along a short dirt road, which is often very muddy, leading to the cave from Kuna Cave Road. Although the entrance has a ladder to get down into the cavern, it is not maintained. The cave itself is littered with graffiti, trash, and ash from fires started by teenagers, leading officials to consider restricting access to the caves and sparking local demand for conservation of the caves.

In 2021, the Bureau of Land Management performed an environmental assessment and proposed a draft for a "Kuna Cave Recreation Site Improvement Project", which would improve public facilities by adding a road leading to the caves, a parking lot, an improved ladder, and a new grate to deter vandalism.

This is such a vivid and fascinating account—equal parts geology, history, and human drama. Here's a breakdown of the key themes and highlights from the story you shared:

Formation of Lava Tubes

• Lava tubes form when the surface of a lava flow cools and hardens while molten lava continues to flow beneath.

• Once the eruption stops, the lava drains out, leaving behind a hollow tunnel—the lava tube.

Discovery and Exploration of Kuna Cave

• Kuna Cave, located southwest of Kuna, Idaho, is one such lava tube.

• Its entrance was revealed by a roof collapse, creating a hidden pit in the desert floor.

• Claude W. Gibson and friends explored it in 1890, using a clever windlass system made from a wagon wheel to lower themselves in.

• They found a skeleton—possibly of a Native American—who had seemingly tried to escape the cave by stacking rocks.

Early 20th Century Interest

• The cave became a local curiosity, with Sunday picnics and adventurous descents via ropes and ladders.

• In 1911, U.S. Surveyor General D.A. Utter led a formal exploration, describing a stunning arched hallway inside the cave.

• Utter speculated the cave extended six miles to the Snake River, based on airflow that extinguished candles.

• Another skeleton was found, this time believed to be a white man, again with little evidence.

Modern Management and Preservation

• The Bureau of Land Management now oversees the site.

• Plans include installing a safer entrance, consolidating access roads, and building a parking lot.

• Unfortunately, modern visitors have defaced the cave with spray paint, marring its natural and historical beauty.

This story is a compelling blend of natural wonder and human curiosity. If you're thinking of visiting Kuna Cave or writing more about it, I’d love to help you explore its geology, folklore, or even draft a creative piece inspired by its eerie past. Want to dive deeper into any part of it?

https://en.wikipedia.org/wiki/Kuna_Caves

https://www.rickjust.com/blog/history-of-kuna-cave-tap-to-read