Launch Light & Moon — June 16
local timeNew Moon (3% illuminated). Peak fishing window — solunar theory puts fish most active around the new and full moon.
Location
Ramp Details
- Access
- ✓ Public Access
- Location
- MT
- Coordinates
- 45.844256, -107.590985
Quick Facts: Grant Marsh
| Location | MT |
|---|---|
| Waterbody | Bighorn River |
| Access Type | Public - Free |
| Coordinates | 45.844256, -107.590985 |
| Hours | Check on site |
| County | Big Horn |
Grant Marsh is a public boat launch providing access to Bighorn River in MT at coordinates 45.84426, -107.59099. Data published by Montana Fish, Wildlife and Parks (MT FWP).
Related: boat launch in Big Horn • fishing access on Bighorn River • MT boat launch
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Frequently Asked Questions About Grant Marsh
Is Grant Marsh free to use?
Yes, Grant Marsh is a public boat launch with free access in MT.
What water does Grant Marsh access?
Grant Marsh provides boat launch access to Bighorn River in MT.
How do I get to Grant Marsh?
Grant Marsh is located at coordinates 45.844256, -107.590985 in MT. Use the "Get Directions" buttons on this page to navigate with Google Maps or Apple Maps.
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Alternative Boat Launches Nearby
The area surrounding Grant Marsh includes 5 other public boat ramps within 14.2 mi, giving boaters flexibility in choosing their access point.