It is located in Cache National Forest in Bear Lake County, Idaho, United States, above the village of St. Charles (located at the north end of Bear Lake).

“Minnetonka” is a misunderstanding of the words Mni and Tanka, derived from one of three Indigenous dialects: Dakota, Lakota or Nakota.

Tours through the cave are offered from Memorial Day (weather permitting) through Labor Day by Aud-Di Recreational Services, the concessionaire that holds the special use permit from the United States Forest Service.

[3] The cave has a tempature of 40 degrees year round and restrictions are in place to prevent the spread of White Nose syndrome of bats.

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