Skip to main content

Rainbow Bay Boat Ramp

Rainbow Bay offers a car-top only boat launch for non-motorized watercraft on Georgetown Lake, located about 14 miles south of Philipsburg off Montana Highway 1.

The day-use picnic area includes restrooms and picnic tables, though potable water is not available. The site is open annually from mid-May through late September (weather dependent) with no day-use fees required.


More ways to access Georgetown Lake

Explore the wonders of Georgetown Lake! Find excellent paddling spots, easy access to boat ramps, and all the amenities you need for a memorable day by the water. Your adventure starts here.

Water and weather conditions (10 day forecast)

Check the forecast at Rainbow Bay Boat Ramp before you go paddling.

No forecast data available.

Montana licenses and regulations

Explore Montana waters

Top paddling waters

No waters available right now.

Popular Cities

Loading popular cities...

Smarter Paddling Starts in the App.

Paddleways gives you everything you need to plan smarter, paddle better, and own every trip from first launch to takeout.