15 Best Lakes in Montana

Prepare to be utterly captivated by Montana, a land where “Big Sky Country” isn’t just a slogan, it’s a profound reality. Imagine a canvas painted with towering peaks, endless forests, and, at their heart, shimmering jewels of water – its magnificent lakes. From the glacial turquoise of the Rockies to the vast, serene expanses of man-made reservoirs, Montana’s lakes offer an unparalleled escape into nature’s embrace.

This guide will sweep you away on a journey to discover 15 of the state’s most incredible aquatic wonders, each with its own unique charm and adventure waiting to be uncovered. Whether you’re a thrill-seeker, a nature photographer, a family looking for splashy fun, or simply craving tranquility, Montana’s lakes promise unforgettable memories. The best time to visit most of these pristine waters is from late May to early October, when the weather is warm, and all recreational activities are in full swing, though some offer unique winter experiences too. Pack your bags, your hiking boots, and your sense of wonder – Montana’s liquid treasures are calling!

Lake McDonald; Flathead County

Prepare to be mesmerized by Lake McDonald, the largest lake in Glacier National Park and arguably its most iconic. What makes this place truly special are its vibrantly colored, polished rocks that line the shoreline, visible through the incredibly clear, cold waters. These stones, ranging from deep reds to greens and blues, are a testament to the ancient geological forces that shaped this landscape. You can expect to drive along the scenic Going-to-the-Sun Road, which skirts the lake’s eastern shore, offering breathtaking views and numerous pull-offs for photography.

Visitors love to skip stones, kayak, or simply sit by the shore, soaking in the serene beauty. Boat tours depart from Apgar Village, providing a unique perspective of the surrounding mountains and forests. Families will adore the accessible shoreline, couples will find it incredibly romantic, and solo travelers can enjoy quiet contemplation amidst grandeur. Its history is intertwined with the park’s formation, a pristine glacial lake that has beckoned adventurers for over a century.

Flathead Lake; Lake & Flathead Counties

Flathead Lake, the largest freshwater lake west of the Mississippi, is a truly magnificent expanse of water that dominates a significant portion of Northwest Montana. Its sheer size and clarity are what make it unique, stretching over 30 miles long and covering nearly 200 square miles. The lake is fed by glacial meltwater, giving it an astonishingly clear, deep blue hue. Visitors can expect an array of activities: boating, sailing, paddleboarding, and kayaking are immensely popular on its vast waters.

Fishing for Mackinaw (Lake Trout) is a year-round pursuit. In summer, roadside stands burst with Flathead cherries, a local delicacy. This lake is a paradise for families seeking water recreation, couples looking for scenic drives, and anglers chasing trophy fish. Its shores are dotted with charming towns like Polson, Lakeside, and Bigfork, offering dining and shopping. Historically, the lake has been central to the Salish and Kootenai tribes, who have lived on its shores for centuries, and its beauty continues to draw people from all walks of life.

Saint Mary Lake; Glacier County

Saint Mary Lake, located on the east side of Glacier National Park, offers a dramatic contrast to Lake McDonald with its rugged, glacially carved peaks rising directly from its deep, cold waters. This lake is truly unique for its raw, untamed beauty and its position along the iconic Going-to-the-Sun Road, making it incredibly accessible for stunning vistas. You can expect to be awestruck by the reflections of the surrounding mountains – including Little Chief Mountain and Red Eagle Mountain – on its often-wind-swept surface.

The lake is a prime spot for photography, with numerous pull-offs providing panoramic views. While swimming is less common due to the frigid water, short hikes, like the trail to Baring Falls, are easily accessible from the lake’s vicinity. This destination is perfect for nature photographers, scenic drivers, and anyone seeking the quintessential, majestic Glacier National Park experience. Its history is literally carved by ice, showcasing the immense power of ancient glaciers that sculpted the landscape.

Quake Lake; Madison & Gallatin Counties

Quake Lake, officially named Earthquake Lake, is a hauntingly beautiful and historically significant body of water formed in a single night by a massive earthquake in 1959. What makes it unique is its eerie “Ghost Forest” – the submerged and partially submerged trees that stand as silent sentinels, testament to the cataclysmic event. You can expect to visit the Earthquake Lake Visitor Center, which provides fascinating interpretive exhibits about the magnitude 7.3 earthquake, the landslide it triggered, and the lake’s formation.

The area offers opportunities for fishing, and quiet reflection amidst a landscape forever altered by nature’s power. It’s a must-see for history buffs, geology enthusiasts, and those seeking a unique, somber beauty. Families can find the visitor center educational, while solo travelers can appreciate the quiet contemplation. The lake serves as a powerful reminder of the earth’s dynamic forces and the resilience of life in its wake.

Swan Lake; Lake County

Nestled in the picturesque Swan Valley, Swan Lake is a true gem offering a more secluded and tranquil experience compared to its larger neighbors. Its unique charm lies in its peaceful ambiance, surrounded by the towering Swan Mountains to the east and the Mission Mountains to the west, offering stunning reflections on its calm surface. You can expect excellent opportunities for paddling (kayaking, canoeing, paddleboarding), fishing for various trout species, and primitive camping along its shores.

The lake is less developed, making it perfect for those seeking solitude and a genuine connection with nature. It’s an ideal spot for peace seekers, campers, anglers, and families looking for a quiet retreat away from the crowds. The lake is part of a vibrant ecosystem, home to diverse wildlife, including eagles, deer, and occasional bears, adding to its wild allure.

Avalanche Lake; Flathead County

Avalanche Lake is a quintessential Glacier National Park experience, renowned for its stunning turquoise waters fed by multiple waterfalls cascading down sheer cliffs. What makes this destination truly unique is the journey itself – a relatively moderate and incredibly scenic hike through a lush, old-growth cedar forest, known as the Trail of the Cedars, which leads you to the lake. You can expect to see vibrant green mosses, towering trees, and the sound of rushing water accompanying you on the trail.

Once at the lake, prepare for breathtaking panoramic views of the cirque, waterfalls, and the impossibly blue water. This hike and lake are perfect for hikers of all skill levels (though the trail can be busy), families with active children, and photographers. Its pristine beauty is a testament to the power of glacial erosion, a natural amphitheater carved over millennia.

Hebgen Lake; Gallatin County

Hebgen Lake, located just west of West Yellowstone, is a large, high-altitude reservoir famed for its exceptional fly-fishing and its dramatic connection to the 1959 Hebgen Lake earthquake. What makes this lake unique is its “quake-induced” history and its position as a gateway to Yellowstone National Park, making it a popular base for outdoor adventurers. You can expect excellent fishing opportunities, particularly for rainbow and brown trout, with numerous access points and boat launches.

Boating, kayaking, and camping are also popular activities. The lake is surrounded by national forest land, offering a rugged, natural setting. This destination is perfect for serious anglers, RV campers, and visitors looking for a quieter alternative to staying directly in West Yellowstone. Its history is deeply tied to the powerful geological event that created Quake Lake downstream, making it a site of both natural beauty and geological significance.

Canyon Ferry Lake; Lewis and Clark & Broadwater Counties

Canyon Ferry Lake, a vast reservoir on the Missouri River, stands as one of Montana’s largest man-made lakes and a major recreational hub near the state capital, Helena. Its unique appeal lies in its immense size, offering seemingly endless expanses for water sports, and its convenient location. You can expect to find a bustling scene of boaters, anglers, and campers enjoying the sun-drenched shores.

It’s particularly popular for powerboating, waterskiing, and fishing for walleye, trout, and perch. Numerous state parks and recreation areas dot its shores, providing campgrounds, boat launches, and picnic spots. This lake is ideal for families seeking varied water activities, serious anglers, and anyone looking for a lively outdoor experience close to urban amenities. Its history is rooted in the construction of the Canyon Ferry Dam in the 1940s and 50s, a significant engineering feat that created this sprawling aquatic playground.

Swiftcurrent Lake; Glacier County

Swiftcurrent Lake, nestled in the Many Glacier valley of Glacier National Park, is a postcard-perfect destination known for its stunning reflections of towering peaks and the historic Many Glacier Hotel. Its unique charm comes from the dramatic scenery, the active wildlife presence, and the iconic boat tours that ferry visitors across its waters to access hiking trails. You can expect incredible photo opportunities, especially at sunrise when the mountains glow.

Boat tours offer a peaceful way to soak in the views and provide access to trails leading to Grinnell Lake and Lake Josephine. Wildlife viewing, particularly of moose and bears, is common in the surrounding meadows, especially at dawn and dusk. This lake is perfect for photographers, wildlife enthusiasts, hikers, and anyone seeking a classic Glacier National Park experience. Its history is tied to the early development of tourism in the park, with the grand Many Glacier Hotel standing as a testament to its enduring appeal.

Bowman Lake; Flathead County

Bowman Lake, located in the remote northwestern section of Glacier National Park, offers a truly unique escape into pristine wilderness. What sets it apart is its tranquil, less-crowded atmosphere, accessible via a gravel road that deters many visitors, preserving its untouched beauty. You can expect to find a long, narrow lake framed by dense forests and the majestic peaks of the Livingston Range.

Activities are focused on quiet recreation: kayaking, canoeing, and paddleboarding on its calm, clear waters, or simply soaking in the profound silence. There are also a few hiking trails that begin near the lake, offering deeper exploration. This destination is perfect for solitude seekers, wilderness enthusiasts, photographers, and those willing to venture off the beaten path for an authentic backcountry feel. Its natural history is purely glacial, a testament to the powerful forces that carved this remote, stunning valley.

Georgetown Lake; Granite & Deer Lodge Counties

Georgetown Lake, nestled high in the Rocky Mountains between Anaconda and Philipsburg, is a vibrant, year-round recreational hotspot offering a different kind of lake experience. Its unique appeal lies in its high-altitude setting (over 6,000 feet) and its popularity for both summer and winter activities. You can expect excellent fishing, particularly for trout, with a reputation for producing large catches.

In summer, boating, waterskiing, and kayaking are popular. Come winter, the lake transforms into an ice fishing mecca, drawing enthusiasts from across the region, alongside snowmobilers and ice skaters. This lake is ideal for anglers, winter sports enthusiasts, and families looking for a lively, active getaway. Its history is tied to Montana’s mining heritage, with the nearby historic towns of Anaconda and Philipsburg providing a glimpse into the past.

Echo Lake; Flathead County

Echo Lake, located just a short drive from the charming town of Bigfork, offers a more intimate and tranquil experience compared to the vast Flathead Lake. Its unique appeal lies in its smaller size, warmer waters, and pleasant, family-friendly atmosphere, making it ideal for swimming and leisurely paddling. You can expect calm, clear waters perfect for kayaking, paddleboarding, and a refreshing dip on a hot summer day.

Fishing for bass and pike is also a popular pastime. The lake is surrounded by private residences and beautiful forest, with limited public access points, adding to its serene, local feel. This lake is perfect for families with young children, swimmers, and those seeking a quieter, less crowded lake experience away from the bustling tourist hubs. Its charm lies in its simplicity and accessibility for a relaxed day by the water.

Lake Koocanusa; Lincoln County

Lake Koocanusa, a massive reservoir stretching over 90 miles and straddling the US-Canada border, is a true hidden gem in Northwest Montana. Its unique appeal lies in its immense scale, remote feel, and stunning emerald-green waters, framed by rugged mountains and dense forests. The name “Koocanusa” is a portmanteau of Kootenay River, Canada, and USA, reflecting its cross-border nature.

You can expect endless opportunities for boating, waterskiing, and fishing for rainbow trout, kokanee salmon, and burbot. The Lake Koocanusa Scenic Byway offers breathtaking views along its eastern shore. This lake is perfect for serious boaters, campers seeking solitude, and those looking to explore the wilder, less crowded reaches of Montana. Its history is tied to the Libby Dam project, completed in 1972, which tamed the Kootenay River and created this vast aquatic playground.

Iceberg Lake; Glacier County

Iceberg Lake, a legendary destination in Glacier National Park, is a testament to the park’s enduring glacial legacy. What makes it truly unique is the remarkable phenomenon of icebergs floating on its turquoise surface well into summer, sometimes even into August, nestled beneath a dramatic cirque of towering cliffs. The journey to Iceberg Lake is a challenging but incredibly rewarding hike, starting from the Many Glacier area.

You can expect to traverse wildflower-laden meadows, pass through dense forests, and climb steadily towards the glacial basin. The sight of the deep blue lake dotted with gleaming white ice chunks is simply unforgettable. This hike and lake are ideal for experienced hikers, adventure seekers, and photographers looking for one of Glacier’s most iconic and breathtaking views. Its very existence is a living history lesson, showcasing the persistent remnants of ancient glaciers that shaped this stunning landscape.

Fort Peck Lake; Valley, Petroleum, Fergus, Garfield, Phillips & McCone Counties

Fort Peck Lake, located in eastern Montana, is the largest man-made lake in the state and one of the largest in the world by volume, a truly immense body of water. Its unique character stems from its vast, remote, and often wild nature, stretching across multiple counties and offering an unparalleled sense of open space. You can expect exceptional fishing opportunities, particularly for walleye, northern pike, and salmon, making it a mecca for serious anglers.

Boating, hunting (in designated areas), and wildlife viewing are also popular, with the lake being part of the Charles M. Russell National Wildlife Refuge. This lake is perfect for dedicated anglers, hunters, solitude seekers, and those who appreciate vast, undeveloped wilderness. Its history is deeply intertwined with the Great Depression and the New Deal era, as the Fort Peck Dam, which created the lake, was a monumental public works project providing jobs and electricity.

Plan Your Visit

Montana’s lakes are more than just bodies of water; they are gateways to adventure, tranquility, and breathtaking natural beauty. From the iconic glacial hues of Lake McDonald and Avalanche Lake to the vast recreational playgrounds of Flathead and Canyon Ferry, and the remote, wild expanses of Fort Peck and Koocanusa, each lake offers a distinct experience. You’ve now seen the incredible variety, from challenging hikes to serene paddles, from bustling summer hubs to peaceful winter retreats.

Whether you’re seeking family fun, romantic escapes, or solo wilderness immersion, Montana’s liquid jewels await. Start planning your trip now, considering your budget – whether you prefer budget-friendly camping and self-catering or luxury lodge stays with guided tours. Embrace the “Big Sky Country” spirit, pack your bags, and prepare to be utterly enchanted by the best lakes Montana has to offer. Your unforgettable adventure begins here!