Grant Marsh Boat Ramp
Grant Marsh Boat Ramp is a public access point in Big Horn County, Montana, providing access to Bighorn River. It sits within the Chimney Creek-Bighorn River watershed.
Sourced from Montana Fish, Wildlife and Parks . Last checked against the source on July 7, 2026.
Boat ramps on Bighorn River
We track 7 public boat ramps on Bighorn River, including this one. If you're planning to spend your time on a different stretch of the water, one of the launch points below may put you closer to where you're actually headed than Grant Marsh Boat Ramp does — they're listed here in order of distance from this ramp.
- General Custer 5.8 mi away
- Arapooish 6.2 mi away
- Two Leggins 14 mi away
- Manuel Lisa 22 mi away
- Mallard's Landing 23 mi away
- Bighorn 31 mi away
Other boat ramps in Big Horn County
Big Horn County tracks 7 public boat ramps in total, spread across several different rivers, creeks and lakes — not just Bighorn River. Each one below shows which waterbody it's on, so you can tell at a glance whether it actually connects to the same water as Grant Marsh Boat Ramp or leads somewhere completely different.
- Grant Marsh Bighorn River less than 0.1 mi away
- General Custer Bighorn River 5.8 mi away
- Arapooish Bighorn River 6.2 mi away
- Two Leggins Bighorn River 14 mi away
- Mallard's Landing Bighorn River 23 mi away
- Bighorn Bighorn River 31 mi away