Caves near Boise, ID

3 caves you can visit within 250 miles of Boise. The closest is Idaho's Mammoth Cave, about 102 miles away.

Distances are straight-line from downtown Boise; driving takes longer. Tour details are checked against each cave's own site; the date is on each cave's page.

Idaho's Mammoth Cave 102 mi

A cave about eight miles north of Shoshone that you explore yourself by lantern, about a quarter mile in and out, with two natural history museums on the same ticket.

Shoshone, ID, from $15.00

Craters of the Moon Caves (Indian Tunnel), Idaho

Photo: Supercarwaar, CC BY-SA 4.0

Craters of the Moon Caves (Indian Tunnel) 145 mi

Lava tubes reached by a 1.6-mile round-trip trail in Craters of the Moon National Monument. Indian Tunnel is the easiest, an 800-foot tube lit by natural skylights; Dewdrop Cave is harder.

Arco, ID

Fort Rock Cave 246 mi

An archaeological cave in Oregon visited only on reserved state park tours from late April to June; its location isn't shared.

Oregon

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