Fontenelle Reservoir is a stunning alpine swimming destination in southwestern Wyoming that offers breathtaking views of the Uinta Mountains and pristine wilderness surroundings. This remote reservoir spans across high desert terrain, creating an immersive natural experience perfect for swimmers seeking solitude and scenic beauty. The crystal-clear water reflects towering peaks and reveals the rugged landscape that makes this region truly special. Fontenelle stands out for its authentic backcountry character, minimal development, and abundance of wildlife including elk, mule deer, and birds of prey. The surrounding landscape combines dramatic geological formations with native vegetation that changes seasonally. Swimming here feels like accessing nature's private sanctuary. Practical tip: Arrive early in summer months when water levels peak and temperatures are warmest for the most enjoyable swimming experience. Practical tip: Bring plenty of water and sun protection as the high altitude desert sun is intense and there are limited shaded areas around the reservoir.
About This Lake
Swimming Conditions
Fontenelle Reservoir features clear water with excellent visibility, typical of high-altitude mountain reservoirs in Wyoming. Summer water temperatures average around 60-65 degrees Fahrenheit, requiring consideration for comfortable swimming duration. The reservoir varies significantly in depth, with deeper channels reaching 100+ feet while shallower areas near access points are suitable for wading and beginning swimmers. Best swimming spots are found along the northwestern shoreline where sandy areas meet the water and inlets provide calmer conditions. Wind patterns can occasionally create moderate surface chop, particularly in afternoon hours. The reservoir is generally quite safe for swimming, though currents should be respected and swimmers should be aware of sudden depth changes. No lifeguards are present, so all swimmers must be self-sufficient and experienced. Water conditions can change rapidly due to weather, so checking current conditions before visiting is essential. Swimmers should avoid the dam area and respect all posted safety signage.
Visitor Information
Fontenelle Reservoir is located approximately 45 minutes south of Pinedale, Wyoming, which serves as the nearest town with lodging and supplies. Access is via Highway 191 south, then County Road 111 east, requiring high-clearance vehicles on some portions. Free parking is available at designated pull-outs with capacity for 15-20 vehicles at primary access points. Basic facilities are minimal, with vault toilets at some areas but no running water, showers, or developed amenities. Picnic areas exist but lack tables or shelters, requiring visitors to bring their own setup. The nearest town of Pinedale offers restaurants, gas stations, and accommodations ranging from budget motels to vacation rentals. Camping is available at nearby BLM lands and private campgrounds within 30 miles. Best visiting occurs from June through September when roads are passable and weather is favorable. Winter access is severely limited due to snow and road conditions. Plan for a full day or weekend trip as it's a destination worth extended time to appreciate the remote wilderness experience.
Alpine Adventure: A Day at Fontenelle Reservoir
Start your day early at sunrise to maximize daylight and ensure parking availability. Drive south from Pinedale on Highway 191 then east on County Road 111, arriving by 9 AM. Begin with a shoreline hike to scout the best swimming spots while acclimating to the altitude. Enter the water gradually, as temperatures hover around 62 degrees. Spend mid-day swimming and floating while enjoying the panoramic mountain scenery. Bring a packed lunch to enjoy at a scenic overlook. Afternoon activities include exploring accessible shoreline areas, photographing wildlife, or additional swimming sessions. Depart by 4 PM to return to Pinedale before dark. This full-day immersion provides an authentic high-altitude reservoir experience.
Wilderness Weekend: Fontenelle Reservoir Escape
Day 1
Arrive Friday afternoon in Pinedale and stock up on supplies including groceries, water, and fuel. Drive to Fontenelle Reservoir by early evening to secure parking and set up camp on nearby BLM lands. Enjoy sunset views from the shoreline and scout swimming locations for the next day. Set up a simple camp dinner while experiencing the tranquil alpine environment. End the evening stargazing under the incredibly dark skies far from light pollution.
Day 2
Wake early Saturday for the best weather conditions and water calmness. Spend the morning swimming and enjoying water activities. Take a moderate hike along accessible shoreline trails to spot mule deer, elk, and mountain birds. Pack a picnic lunch to enjoy at a scenic viewpoint. Afternoon activities include photography, additional swimming, or relaxation. Return to Pinedale Saturday evening for overnight accommodation, then return Sunday morning for final swimming sessions before heading home.
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Is Fontenelle Reservoir safe for swimming?
Fontenelle Reservoir is generally safe for swimming, though it has no lifeguards and swimmers must be self-sufficient and experienced. Water temperatures average 60-65 degrees Fahrenheit in summer, so acclimation is necessary. Always respect posted safety signage and be aware of sudden depth changes and occasional afternoon wind patterns.
What is the best time to swim at Fontenelle Reservoir?
The best swimming season is June through September when roads are passable and water temperatures are warmest, averaging 60-65 degrees Fahrenheit. Early morning hours typically offer the calmest water conditions before afternoon winds develop. July and August provide the most comfortable water temperatures and reliable weather.
Is there an entry fee at Fontenelle Reservoir?
No, there is no entry fee at Fontenelle Reservoir. Access is managed by the Bureau of Land Management (BLM) and is completely free to the public. However, visitors should respect all BLM regulations and posted signage.
What facilities are available at Fontenelle Reservoir?
Facilities at Fontenelle Reservoir are minimal, with vault toilets at some areas but no running water, showers, or developed amenities. Visitors must be self-sufficient and bring all necessary supplies including drinking water, food, and camping equipment. The nearest town of Pinedale, 45 minutes away, offers all standard services.
Can you camp near Fontenelle Reservoir?
Yes, camping is available on nearby BLM lands surrounding Fontenelle Reservoir, allowing dispersed camping in designated areas. Several private campgrounds and developed camping facilities are also located within 30 miles in the Pinedale area. Reservations are typically not required for BLM dispersed camping.
📋 Sources & updates
Compiled from official park, state and lake-authority information.Swam at Fontenelle Reservoir?
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