Tom Thumb Tunnel

Cave entrance 16.3 miles from Arco.

Type

Cave

Town

Arco · 16 mi from the town center

Location

43.44752, -113.49764 · Open map

Source

OpenStreetMap · checked October 2, 2026

Check the official page for hours, fees, access and closures before you go. Distances are straight-line miles. Place data © OpenStreetMap contributors (ODbL). See something wrong? Let us know. Thank you.

• Tom Thumb Tunnel
• Cave
• Attraction
• Historic site
• Trail
• Park
• Viewpoint

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• Big Sink Overlookviewpoint · near Arco
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• Lava Treesattraction · near Arco
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• Inferno Cone Viewpointviewpoint · near Arco
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• Broken Top Loop Trail1.5 mi long · near Arco
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