Launch Conditions
Use cautionLaunch with caution — limited daylight.
- Advisories
- None active
- Daylight
- Past sunset (9:13 PM)
Live from the National Weather Service, USGS, and NOAA. A guide, not a substitute for official forecasts and your own judgment.
Launch Light & Moon — June 24
local timeFirst Quarter (67% illuminated). Average fishing outlook by moon phase — focus on dawn and dusk bite windows.
Location
Quick Facts: Boulder River Boat Ramp
| Location | Montana |
|---|---|
| Waterbody | Boulder River |
| Access Type | Public |
| Coordinates | 45.854077, -109.913932 |
| Hours | Check on site |
| County | Sweet Grass County |
Boulder River Boat Ramp is a boat launch providing access to Boulder River in Montana at coordinates 45.85408, -109.91393.
Boulder River Boat Ramp is a boat launch on Boulder River in Sweet Grass County, Montana. This page shows sunrise, sunset, and moon-phase times for the launch, updated automatically. There are 6 other mapped boat ramps within about 15 miles if conditions here aren't right.
Related: boat launch in Sweet Grass County • fishing access on Boulder River • Montana boat launch
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Frequently Asked Questions About Boulder River Boat Ramp
What water does Boulder River Boat Ramp access?
Boulder River Boat Ramp provides boat launch access to Boulder River in Montana.
How do I get to Boulder River Boat Ramp?
Boulder River Boat Ramp is located at coordinates 45.854077, -109.913932 in Montana. 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 Boulder River Boat Ramp includes 6 other public boat ramps within 9.9 mi, giving boaters flexibility in choosing their access point.