However, the first known caves in the area may have actually been the Redmond Caves.

Deschutes National Forest as a whole contains in excess of 250 known caves.

A known cave is located in the area that was used as a sheep fold.

It is one of at least 240 known caves in the park.

The commercial tour route covers approximately one third of the known cave.

Jackson Cave is one of 18 known caves located in the state forest and the immediate vicinity.

The park is home to over 240 known caves, and potentially hundreds more.

Interesting features of the park include 20 known caves, two of which are large enough to be significant.

The cave remains the only known cave on Earth deeper than 2,000 metres.

The caves themselves formed about 240 million years ago, making them the oldest known caves in the world.