Launch Conditions
Good to launchConditions look good for launching.
- Advisories
- None active
- Daylight
- Sunset 9:17 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 — July 29
local timeFull Moon (100% illuminated). Peak fishing window — solunar theory puts fish most active around the new and full moon.
Location
Quick Facts: Big Arm
| Location | Big Arm, Montana |
|---|---|
| Waterbody | Flathead Lake |
| Access Type | Public - Free |
| Coordinates | 47.805346, -114.313403 |
| Hours | Check on site |
| County | Lake |
Big Arm is a public boat launch providing access to Flathead Lake in Big Arm, Montana at coordinates 47.80535, -114.31340. Data published by Montana Fish, Wildlife and Parks (MT FWP).
Big Arm is a public boat launch on Flathead Lake in Big Arm, Lake County, Montana. As a public launch it is open to all boaters; state- and county-run ramps like this are typically free or charge only a modest day-use fee. 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 ramp near Big Arm • public launch in Lake • fishing access on Flathead Lake • Montana boat launch
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Frequently Asked Questions About Big Arm
Is Big Arm free to use?
Yes, Big Arm is a public boat launch with free access in Big Arm, Montana.
What water does Big Arm access?
Big Arm provides boat launch access to Flathead Lake in Big Arm, Montana.
How do I get to Big Arm?
Big Arm is located at coordinates 47.805346, -114.313403 in Big Arm, 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
Boaters have 6 other launch options within 3.5 mi, each offering access to nearby waters with varying facilities and conditions.