Launch Light & Moon — June 17
local timeWaxing Crescent (6% illuminated). Good fishing outlook — the moon is approaching a major phase.
Location
Ramp Details
- Access
- ✓ Public Access
- Location
- MT
- Coordinates
- 45.842107, -107.594366
Quick Facts: Grant Marsh
| Location | MT |
|---|---|
| Waterbody | Bighorn River |
| Access Type | Public - Free |
| Coordinates | 45.842107, -107.594366 |
| Hours | Check on site |
| County | Big Horn |
Grant Marsh is a public boat launch providing access to Bighorn River in MT at coordinates 45.84211, -107.59437. Data published by Montana Fish, Wildlife and Parks (MT FWP).
Related: boat launch in Big Horn • fishing access on Bighorn River • MT boat launch
Explore more boat launches across MT
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 45.842107, -107.594366 in MT. Use the "Get Directions" buttons on this page to navigate with Google Maps or Apple Maps.
Get Directions
Navigate directly to this boat launch using your preferred mapping service:
Alternative Boat Launches Nearby
The area surrounding Grant Marsh includes 5 other public boat ramps within 14.0 mi, giving boaters flexibility in choosing their access point.