Georgetown Lake, Granite County, Montana May 2017 01 – Georgetown Lake, Montana
Georgetown Lake, Granite County, Montana May 2017 02 – Georgetown Lake, Montana
Georgetown Lake, Granite County, Montana May 2017 04 – Georgetown Lake, Montana
4.4★★★★☆

Georgetown Lake

Montana · West · USA

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Water Temp68°F
ClarityCrystal Clear
DifficultyModerate
EntryFree
Best TimeJuly through September
⚠️
Can you swim at Georgetown Lake? Yes. Public swimming – no lifeguards – swim at your own risk · no sandy beach · free entry · best July through September.

Swimming Guide

What to expect at Georgetown Lake

YesPublic swimming
68°FSummer water
July through SeptemberBest months
Crystal ClearWater clarity
ReservoirWater type
CalmCalmness
noneSandy beaches
NoLifeguards
NoPiers & docks
Free parking for 50 vehicles at…Parking
FreeCost
RuralLocation

About Georgetown Lake

Georgetown Lake is a stunning alpine reservoir nestled in western Montana's Flint Creek Range, offering swimmers a pristine mountain experience with breathtaking scenery. This 7-mile-long glacial lake sits at 6,330 feet elevation, surrounded by dense coniferous forests and dramatic peaks that create a serene backdrop for water recreation. The lake's character is distinctly rugged yet welcoming, attracting outdoor enthusiasts seeking authentic mountain swimming without commercial development. Crystal-clear waters reflect alpine vistas, while the surrounding wilderness provides excellent hiking and wildlife viewing opportunities. What makes Georgetown Lake special is its combination of excellent water quality, natural beauty, and accessibility from nearby communities. The lake maintains a peaceful atmosphere despite seasonal visitors, preserving its quiet mountain charm. Practical tips: Arrive early during summer weekends to secure parking, and bring a wetsuit or rashguard as water temperatures can be surprisingly cool even in July and August.

About This Lake

Swimming Conditions

Georgetown Lake offers excellent swimming conditions with crystal-clear water and minimal algae concerns. Water clarity typically ranges from 20-40 feet visibility, with excellent visibility during early season. Summer water temperatures average 65-72 degrees Fahrenheit, requiring a wetsuit for extended swimming sessions. The lake's maximum depth exceeds 200 feet, but swimmers typically stay near shorelines where depths range from 5-20 feet. The best swimming areas include the main beach access near the trailhead parking area and sections along the northeast shore. The reservoir remains generally calm with minimal currents, though afternoon winds occasionally create small waves. Safety considerations include cold water temperatures, variable weather patterns, and limited lifeguard presence. No permanent lifeguards patrol the lake, so swimmers should never enter alone and should be comfortable with open water swimming. The rocky bottom near some areas requires water shoes for comfort and safety.

Visitor Information

Georgetown Lake is located approximately 50 miles south of Missoula, Montana, accessible via Highway 93 and Forest Service roads. From Missoula, drive south on Highway 93 for about 30 miles, then follow signs toward the lake via Forest Service Road 10. Free parking is available at the main trailhead area with capacity for approximately 50 vehicles. Additional parking exists at secondary access points along the shoreline. Basic facilities include pit toilets and picnic areas, though amenities are limited. No restaurants operate directly at the lake, so pack meals and supplies from nearby Philipsburg (20 miles away) or Missoula. Georgetown Lake has several USFS campgrounds nearby including Georgetown Lake Campground offering 75 sites with full services available mid-May through September. Lodging options are limited but available in Philipsburg and smaller mountain communities. The best visiting time is July through September when weather is most stable and water temperatures are warmest. Spring and early summer can see sudden weather changes and snow.

Things to Do

Beyond the swim

SwimmingKayaking & CanoeingPaddleboardingFishingBoating & WaterskiingHiking TrailsCamping
Crystal clear alpine waterMountain sceneryFree accessPeaceful atmosphereExcellent visibility

Plan Your Visit

A day trip or a full weekend at Georgetown Lake

A Perfect Mountain Swim Day at Georgetown Lake

Start your Georgetown Lake adventure by arriving early morning to enjoy calm water conditions and secure parking. After a 30-minute drive from Missoula, begin with a leisurely swim in the pristine alpine waters, experiencing the remarkable clarity and mountain vistas. Pack a picnic lunch to enjoy at the shoreline while taking in the peaceful surroundings. Afternoon activities include hiking scenic forest trails around the lake perimeter, with options ranging from easy 1-2 mile walks to more challenging alpine routes. Bring a camera to capture stunning mountain photography as afternoon light enhances peak reflections. Before departing, explore the forest ecosystem and spot local wildlife including elk and mountain goats. End your day as sunset paints the peaks golden, creating a perfect mountain memory before the drive back to civilization.

◆Pristine alpine swimming in crystal-clear water
◆Stunning mountain scenery and wildlife viewing
◆Scenic hiking trails with diverse difficulty levels
Arrive by 9 AM during summer weekends to secure parking at the main trailhead. Bring a wetsuit or rashguard as water temperatures remain cool even in mid-summer.

Mountain Escape: Georgetown Lake Weekend Adventure

Day 1

Drive south from Missoula on Friday afternoon to Georgetown Lake, arriving by early evening. Set up camp at Georgetown Lake Campground or a secondary USFS site nearby. Enjoy a sunset swim in calm evening waters, followed by a campfire dinner with mountain views. Spend the evening stargazing under pristine dark skies, relatively free from light pollution. Relax and prepare for a full day of activities ahead.

☾ Overnight: Georgetown Lake Campground or nearby Philipsburg, Montana (20 miles away) offers basic lodging and dining options

Day 2

Wake early for a cool-water morning swim, experiencing the lake at its calmest. Spend mid-morning hiking forest trails with wildlife viewing opportunities. Pack a substantial lunch to enjoy at scenic overlooks. Afternoon activities include additional swimming, photography, and exploration of secondary coves and forest areas. Depart by late afternoon for the return drive to Missoula, carrying memories of authentic mountain recreation.

Reserve campground sites in advance during July and August when spaces fill quickly. Pack all food and supplies from Missoula or Philipsburg, as no services exist at the lake.

Getting There

47.1167, -113.8667

What to Bring

wetsuittowelwater shoessunscreensnackscamerainsect repellentfirst aid kit

Frequently Asked Questions

Is Georgetown Lake safe for swimming?

Georgetown Lake is generally safe for swimming with excellent water clarity and calm conditions. However, cold water temperatures averaging 65-72 degrees Fahrenheit require a wetsuit for extended swimming, and the absence of lifeguards means swimmers should never enter alone and be comfortable with open water conditions.

What is the best time to swim at Georgetown Lake?

July through September offers the best swimming conditions when water temperatures reach their warmest levels (68+ degrees Fahrenheit) and weather is most stable. Early morning swims provide the calmest water conditions throughout the season.

Is there an entry fee at Georgetown Lake?

No, Georgetown Lake access is completely free with no entry or parking fees. The lake is managed by the U.S. Forest Service and available to the public at no cost year-round.

What facilities are available at Georgetown Lake?

Georgetown Lake offers limited facilities including pit toilets, picnic areas, and a main trailhead parking area. The nearby Georgetown Lake Campground provides 75 USFS campsites with more amenities, operating mid-May through September.

Can you camp near Georgetown Lake?

Yes, Georgetown Lake Campground offers 75 USFS sites with full services available from mid-May through September. Additional USFS campgrounds operate nearby, making the area ideal for camping vacations with water-based recreation.

📋 Sources & updates

Compiled from official park, state and lake-authority information.
Last checked 9 November 2026 · Conditions, fees and opening dates change – check with the lake manager before you go. Found something out of date? Send a correction.
🏊

Researched by the Swimming Lakes team

Our guides are compiled from official park, state and lake-authority sources, then checked and updated regularly. Spot something out of date? Send us a correction.

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Photo 1: Mike Cline (CC BY-SA 4.0), via Wikimedia Commons · Photo 2: Mike Cline (CC BY-SA 4.0), via Wikimedia Commons · Photo 3: Mike Cline (CC BY-SA 4.0), via Wikimedia Commons