Fremont Lake, Wyoming, USA

Lake Locations:

USA - West - Wyoming - Southwest -

Also known as:  The Deep, Stewart Lake (historical)

One of the best-kept secret lake destinations in Northwestern Wyoming is spectacular Fremont Lake. Formed by nature when glaciers gouged out a deep trench along the western slope of the Wind River Mountain Range, the lake was dammed by glacial deposits far back in pre-history. A full eleven miles long but only half a mile wide, Fremont Lake reaches a depth of 607 feet, the deepest lake in Wyoming. Surrounded by mostly public lands under the control of the Bureau of Land Management, Fremont Lake is just one of the many high mountain lakes hidden within this area of the Bridger-Teton National Forest. Clean and cold, with steep slopes protecting much of the shoreline, Fremont Lake serves as the main water source for the Town of Pinedale about three miles to the south. A few summer homes and one resort lodge occupy the south shoreline, but the only other signs of human intervention along the 22-mile shoreline are the three Forest Service Campgrounds and the occasional hiker or backpacker.

Located 100 miles north of Rock Springs and 75 miles south of Jackson Hole, Fremont Lake hides its charms quite effectively to those not looking for it. Locally, Fremont Lake has all sorts of reasons that residents and visitors are drawn to it. A small natural sandy beach at the south end invites swimmers and sun bathers, while two boat ramps allow for launching boats up to 35 feet long if water levels are normal. All types of watercraft are allowed to enjoy the water, offering such watersports as water skiing, tubing, sailing, wind-surfing, canoeing, kayaking and power-boating. A few private docks also offer boat access to the water by invitation only. The resort here includes a marina which offers boat gas, seasonal slips, bait, parking and rentals of pontoons, fishing boats, canoes, kayaks, paddleboats and jet boats. Subject to regular winds sweeping down from the surrounding mountains in the afternoons, a local boat club regularly meets here for sailboat races, club outings and regattas. The Forest Service Campground along the northeast shore is only accessible by either trail or boat, and boat-camping is a popular pastime. Although most nearby large lakes are dammed, Fremont Lake has only a small weir across the Pine Creek outlet that can raise water levels almost two feet when needed.

Bragging rights belong to many fishermen who have managed to catch one of Fremont Lake’s legendary 40-pound mackinaws. Rainbow trout, brook trout and Kokanee salmon also live in the lake. Unlike many deep lakes, Fremont Lake studies show that there is good oxygen saturation even at great depths within the lake, offering excellent cold water fishery opportunities. The lake freezes over by January and is frozen until May, so ice fishing is popular in all areas of the lake. Fishing derbies are held both summer and winter, sponsored by the local boat club. A series of small artificial wetland areas called the ‘CCC’ Ponds offer vital spawning habitat, nature interpretive programs, and a children’s fishing day. Because the water is exceedingly clean and used for drinking water, authorities are necessarily protective of the water quality. Reservations for the campgrounds are suggested and dispersed camping, although allowed, is prohibited within 200 feet of the waterline or incoming streams. And because this is bear country, campers much follow strict rules about food storage and make use of the provided bear-proof containers.

Although there are no designated hiking trails near Fremont Lake, game trails are plentiful and often used for access to the backcountry. The Bridger Wilderness and its neighbor, the Gros Ventre Wilderness, encompass three mountain ranges, over a thousand small lakes, and over 1.2 million acres of designated Wilderness within the 3.4 million-acre Bridger-Teton National Forest. The highest mountain in Wyoming, 13,804-foot Gannett Peak, is located within the Bridger Wilderness.

Nearby New Forks and Half Moon Lakes offer trailheads with parking and corrals. Self registration for hikers, particularly those planning a multi-day hike, is available at the trailheads. Weather can change here quickly, with snow possible every month of the year, so hikers should always be prepared for inclement weather. Hikers can obtain trail maps and any necessary permits from the nearest Forest Service office. Inexperienced hikers may avail themselves of the services of local outfitters who supply and lead horseback treks and camping trips into the backcountry under special license with the Forest Service. Many trails are very remote, and the nearest town may be over 50 miles away. Cell phone service is mostly non-existent so backcountry hikers must be fully prepared and preferably very experienced.

The Town of Pinedale considers itself the gateway to Fremont Lake and the nearby wilderness areas. The local area is becoming more popular as its recreational opportunities become better known. A nearby ski resort offers all types of snow and skiing activities without the huge crowds sometimes seen at Jackson Hole. Snowmobiling, cross-country skiing. sledding, winter trekking and ice climbing are all available near Pinedale and Fremont Lake. Many of the roads are seasonal but offer opportunities for wildlife viewing and nature observation year-round. Besides black bear and grizzly bear in the surrounding wilderness, other large mammals such as pronghorn, elk, mule deer, moose and bighorn sheep call this area home. Eagles, wolves, mountain lion, lynx and bobcat inhabit the surrounding area.

The Town of Pinedale holds strong historic links to the past as the area was a regular haunt of the fur traders of the early 1800s. Some trappers camped at the south end of Fremont Lake for over ten years. At least six of the big Beaver Hat Rendezvous were held near Fremont Lake in the Green River Valley. That history is kept alive in Pinedale with activities centering around the local Museum of The Mountain Man. The museum itself is open from May to November and offers standing exhibits of fur trapping tools, weaponry, artifacts of both the European trappers and the local Native American tribes who often supplied many of the furs and camped together with the trappers. Children’s hands-on exhibits, living history demonstrations, Plains Indian interpretive discussions and a live Mountain Man camp are just a few of the activities that go on during Living History Days and the Annual Green River Rendezvous held near the museum each summer. The festivities spread to the Town of Pinedale, where a Green River Rendezvous Pageant and associated festivities provide fun and food for all who visit.

Although there are few private rentals directly at Fremont Lake, the resort there accepts guests and provides activities and guided tours. The Town of Pinedale itself holds all types of lodgings from small motels and chain hotels to bed & breakfasts, guest cabins and RV campgrounds. A number of other resort properties and guest lodgings are located along Highway 191 which becomes Pinedale’s Main Street and attracts many visitors traveling to Jackson Hole or on north to Yellowstone. With much of the surrounding area in Federal or State hands, there is still some private real estate that can be found for sale. Pinedale is big enough to provide all necessary services yet small enough that visitors quickly encounter that friendly, small-town camaraderie experienced across rural North America. So, plan a trip to Pinedale and spend a few days enjoying Fremont Lake.

Things to do at Fremont Lake

  • Vacation Rentals
  • Fishing
  • Ice Fishing
  • Boating
  • Sailing
  • Swimming
  • Beach
  • Canoeing
  • Kayaking
  • Water Skiing
  • Wind Surfing
  • Tubing
  • Camping
  • Campground
  • Cabin Rentals
  • Hiking
  • Ice Climbing
  • Cross-Country Skiing
  • Snowmobiling
  • Horseback Riding
  • Wildlife Viewing
  • Birding
  • National Forest
  • Museum

Fish species found at Fremont Lake

  • Brook Trout
  • Kokanee Salmon
  • Rainbow Trout
  • Salmon
  • Trout

Fremont Lake Photo Gallery

Fremont Lake Statistics & Helpful Links

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Lake Type: Natural Freshwater Lake, Not Dammed

Surface Area: 5,093 acres

Shoreline Length: 22 miles

Normal Elevation (Full Pond): 7,418 feet

Average Depth: 269 feet

Maximum Depth: 607 feet

Water Volume: 1,370,105 acre-feet

Drainage Area: 76 sq. miles

Trophic State: Oligotrophic

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Trophic State | LakeLubbers

Trophic State measures the level of algae and nutrients in a lake.

An oligotrophic lake is very clear (blue in color) and does not support much plant or fish life. A hyper-oligotrophic lake is the clearest of all lakes, and is nearly devoid of plants and fish.

A mesotrophic lake is slightly green and supports a moderate degree of plant and fish life. A lake's most desired trophic state is generally this mid-point - the mesotrophic state.

A eutrophic lake is somewhat murky and supports a large amount of plant and fish life. A hypereutrophic lake is clouded with algae, plant life, and fish life. A eutrophic or hyper-eutrophic lake can be difficult to navigate by boat - and is often an unpleasant place to swim.

The use of phosphorus-rich and nitrogen-rich fertilizer on lawns and golf courses surrounding a lake can cause it to become eutrophic or hypereutrophic.


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Catchment or Drainage Area | LakeLubbers

This is the surrounding area that drains into a lake, including land, rivers and their tributaries. This is also known as the lake's "catchment basin".

Small lakes at the highest peaks of mountains have small drainage areas. The world's oceans have the largest drainage areas.


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Lake-Area Population | LakeLubbers

This is the estimated number of people who live in a house with a view of a lake, plus those who self-describe the lake as their home, for example: "I live at Smith Mountain Lake."


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Water Residence Time | LakeLubbers

This is the estimated time that it takes for an amount of water equal to the entire volume of a lake to flow out of - or evaporate from - the lake.

Residence Time can be as short as a few days for fast-flowing small lakes, and can exceed 100 years for slow-flowing large lakes.


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Completion Year | LakeLubbers

This is the year that a reservoir was first filled to the reservoir's normal elevation - or the year that a natural lake was first dammed. A large reservoir can take more than a year to fill after its dam is first closed.

The Grand Anicut in southern India is generally considered the world's oldest dam that still operates. Grand Anicut was constructed in the second century BC. It now impounds an irrigation network that includes roughly one million acres.

You can find many of the the world's newest reservoirs on LakeLubbers. Many of the world's oldest reservoirs appear on the last page of that list.


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Water Volume | LakeLubbers

This is the estimated volume of water that a lake contains -- measured at the lake's normal elevation. By this measure, the world's largest freshwater lake is Siberia's Lake Baikal.

You can find many of the the world's largest lakes (by water volume) on LakeLubbers.

Water Volume can be measured in acre-feet, in cubic miles, or in cubic kilometers. One acre-foot is the amount of water needed to cover one acre (43,560 square feet) to a depth of one foot. One cubic mile equals 3,379,200 acre-feet. One cubic kilometer equals 810,713 acre-feet.

1 acre-foot is equal to 325,851 US gallons. Siberia's Lake Baikal contains about 6,276,367,740,000,000 gallons of freshwater - nearly 1 million gallons for every living person on earth.

The other - and more widely used - measure of a lake's size is the lake's surface acreage. By that measure, the world's largest freshwater lake is North America's Lake Superior.


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Maximum Depth | LakeLubbers

This is the estimated greatest depth of the water in a lake -- measured at the lake's normal elevation. The world's deepest lake is Siberia's Lake Baikal; that lake's maximum depth is estimated at 5,314 feet.

You can find many of the the world's deepest lakes on LakeLubbers. If you select the last page of that list, you will find the (maximum depth of) the shallowest lakes in our database.


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Average Depth | LakeLubbers

This is the estimated average depth of the water in a lake -- measured at the lake's normal elevation. If the water volume and surface area of a lake are known, an estimate of the lake's average depth can be calculated:

Water volume ÷ Surface Area = Average Depth

Example: 1,000,000 acre-feet ÷ 20,000 acres = 50 feet average depth


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Maximum Elevation | LakeLubbers

This is a lake's highest water level, measured by the lake's surface distance above sea level, that can occur during flooding. A lake's highest possible maximum elevation is usually the top of the lake's dam or spillway.

At lakes that include residential development, government regulations usually forbid the construction of homes below a lake's maximum elevation.


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Minimum Elevation | LakeLubbers

This is a lake's lowest water level, measured by the lake's surface distance above sea level, that can be reasonably expected to occur. Low lake levels can occur due to deliberate seasonal draw downs for irrigation or impending snow melt, reduced water inflows, drought and evaporation, residential or commercial water demands, and hydropower generation.

Some lakes' minimum and maximum elevations are virtually the same. Lakes that generate hydropower may vary by several feet - according to power demand. Lakes whose primary purpose is to prevent flooding can seasonally vary by 100 feet or more.

When some lakes reach their minimum elevation, their boat ramps may not be long enough to permit boat access - and boats docked on shallow parts of the lake may end up on dry ground. In those cases, kayakers and shore-based anglers may be among the few happy recreational users of the lake.


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Normal Elevation | LakeLubbers

This is a lake's normal water level, measured by the lake's surface distance above sea level. For a reservoir, this water level is also known as "full pond" or "full pool".

You can find many of the world's highest-elevated lakes on LakeLubbers. Lakes with the lowest elevations (known by LakeLubbers) are shown on the final page of that list.


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Shoreline Length | LakeLubbers

This is the length of the exterior shoreline around a lake - measured at the lake's normal elevation. The shoreline length can be considerably shorter or longer when lake water levels are lower or higher than normal.

A lake with many coves has a much longer shoreline than a lake of similar surface area that is nearly circular in shape.

When known, the shoreline miles that we report in our statistics include only the lake's exterior shoreline, and exclude the shorelines of islands located within a lake's boundaries. In lakes with many islands, those islands' combined shorelines may exceed a lake's exterior shoreline.

You can find many of the world's longest-shoreline lakes on Lakelubbers.


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Surface Area | LakeLubbers

This is the area (acreage, square kilometers, etc.) of the top surface area of a lake - measured at a lake's normal elevation. The surface area can be considerably smaller or larger when lake levels are lower or higher than normal. North America's Lake Superior is the world's largest freshwater lake by this measure.

The other measure of a lake's size is the lake's water volume. By that measure, the world's largest freshwater lake is Lake Baikal in Siberia.

You can find many of the world's largest lakes (acres) on Lakelubbers. There is no widely-accepted minimum surface area that defines a lake. What Lakelubbers describes as a lake, you might call a pond. The smallest lake that Lakelubbers currently includes is Hawaii's 2-acre Lake Waiau.


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Water Level Control | LakeLubbers

This is the organization that controls water releases or outflows from the lake or reservoir. In the USA, this is often the US Army Corps of Engineers, a power company, a municipal water system, an irrigation district, or a paper manufacturing company. In the case of private or gated lakes, a homeowners' association may be the lake's controlling authority.

Many lakes cross borders, including North America's Great Lakes. The control of such lakes and their coveted freshwater may be amicably shared - or hotly disputed.

"Water wars" continue at many lakes as growing populations and crop irrigation needs compete for the freshwater that lakes contain.


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Lake Type | LakeLubbers

There are 3 basic types of lakes that are currently included on LakeLubbers. 2 types may be dammed or not dammed, producing 5 classifications.

- A Reservoir is a man-made freshwater lake that is usually created by damming rivers.

- A Natural Freshwater Lake occurs naturally - often by glacial activity - and has a salinity of less than 30 parts per thousand. It may be dammed to produce electricity or for other reasons.

- A Natural Saltwater Lake occurs naturally and has a salinity of more than 30 parts per thousand (ppt). It may be dammed.

"Brackish" water may be categorized as freshwater or saltwater, depending on its salt content (salinity). Oligohaline water has less than 15 ppt of salt. Mesohaline water has 15-29 ppt. Polyhaline has 30-335 ppt.


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