Tongue River Reservoir in southeastern Montana.
Tongue River Reservoir in southeastern Montana. User:Magicpiano · CC BY-SA 4.0

Tongue River Reservoir State Park

State Park · Montana · Montana Fish, Wildlife & Parks

Plan your visit

Camping

Camping · Group Camping · Rv Camping

Site types & reservations: see the official site.

Know before you go

Official site
fwp.mt.gov
Managed by
Montana Fish, Wildlife & Parks

Getting there

Directions on Google Maps →

Things to do

Activities & features: Boating · Hunting · Marina · Swimming

Photos

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61 parks mapped in Montana

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Guides for the trip

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Sources: Wikimedia Commons / editorial, State agency, USGS PAD-US · updated 2026-09-12