Highlight • Lake
Boulder Reservoir
Cycling
5.0
(30)
Mountain biking
5.0
(1)
Boulder Reservoir is a prominent 700-acre man-made lake nestled in the northern part of Boulder, Colorado, at an elevation of approximately 1573 meters. This vital body of water serves as both a crucial water storage facility for the City of Boulder and a vibrant recreational hub within the Boulder Reservoir Regional Park. With picturesque views of the iconic Flatirons, it offers a unique blend of mountain scenery and lakeside enjoyment, making it a beloved destination in the Front Range region.
Visitors consistently praise the diverse opportunities for outdoor activity and the stunning natural beauty surrounding the reservoir. Many are drawn to the far-reaching views of the foothills and the Flatirons, which provide a spectacular backdrop for any adventure. The traffic-free lakeside trails are particularly popular, offering an ideal setting for cycling, running, and leisurely walks, perfect for families, groups, or solo explorers. The expansive swim beach, one of Colorado's largest, allows for sunbathing with mountain vistas, creating a truly unique "beach or mountains" experience.
Before heading out, it's helpful to know that Boulder Reservoir is easily accessible, located just about 15 minutes from central Boulder. For those planning water activities, all watercraft require a City of Boulder boat permit, which can be obtained on-site. The park provides convenient amenities such as lifeguards during swimming hours, snack shops, and rental options for paddleboards and kayaks, ensuring a comfortable and enjoyable visit. Ample parking is available, especially for the numerous events hosted here throughout the year.
The reservoir is a year-round destination, offering a wide array of activities depending on the season. In warmer months, it's a hotspot for boating, swimming, sunbathing, and water skiing, with opportunities for sailing lessons. Anglers can enjoy fishing for walleye, smallmouth bass, and rainbow trout, while winter brings the chance for ice fishing when conditions allow. On land, miles of trails cater to walking, running, and cycling, including the popular 5.3-mile Boulder Reservoir Loop Trail. The area is also rich in wildlife, with sightings of osprey, herons, and prairie dogs common.
The Boulder Reservoir Loop Trail is a particular highlight for many, offering a relatively flat and accessible path that encircles the lake. This 5.3-mile route is ideal for a scenic run, a family bike ride, or a peaceful walk, providing continuous views of the water and surrounding landscape. Its gentle terrain makes it suitable for most fitness levels, allowing everyone to enjoy the natural beauty and fresh air.
Beyond the trails, the reservoir offers countless memorable moments. Imagine picnicking by the water's edge with the Flatirons towering in the distance, or spotting an osprey diving for fish. The vibrant atmosphere during one of the many fitness events, like a triathlon or 5K race, adds an exciting energy to the park. Whether you're seeking a quiet escape or an active day out, the combination of water sports, land activities, and stunning views creates a truly special experience.
To fully explore the diverse offerings of this area, consider planning your visit with komoot. You can discover a variety of running trails, biking routes, and walking paths that cater to different preferences and abilities. From leisurely strolls to challenging runs, komoot helps you find the perfect way to experience the Boulder Reservoir's natural beauty and recreational opportunities, ensuring you make the most of your time in this exceptional Colorado destination.
Tips
May 26, 2022
Cycling
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Nearby routes
Best routes near Boulder Reservoir
4.3
(3)
18
riders
22.8km
01:58
110m
110m
The Boulder Reservoir and Boulder Valley Ranch Loop offers a delightful touring cycling experience, blending continuous water and mountain views around the reservoir with the open, rolling farmland of Boulder Valley Ranch. You'll cycle past barns and horses, enjoying far-reaching vistas of the foothills and Haystack Mountain, with the iconic Flatirons often in sight. The terrain is generally wide, flat, and not overly rocky, making for a smooth ride across graded dirt, paved, and gravel sections.
This easy 14.2-mile (22.8 km) loop involves a gentle 359 feet (109 metres) of elevation gain and typically takes just under two hours to complete. The Boulder Reservoir provides a convenient starting point with amenities like restrooms and picnic spots. The trail is multi-use, so expect to share the path with others, and starting in the morning is recommended for a quieter experience.
What truly sets this route apart is its unique combination of natural beauty and agricultural charm, offering year-round accessibility as the trail dries quickly after snow. Keep an eye out for local wildlife, including prairie dogs, various bird species, and even rare butterflies, adding an unexpected element to your ride through this distinctive Boulder County landscape.
6
riders
47.4km
03:08
210m
210m
Cycle the moderate 29.4-mile LOBO Trail loop, connecting Longmont, Boulder Reservoir, and Gunbarrel with scenic foothills views.
6
riders
51.4km
03:50
440m
440m
Embark on the LOBO Trail and Boulder Valley Ranch Loop, a moderate touring bicycle route spanning 31.9 miles (51.4 km) with a total elevation gain of 1451 feet (442 metres). You can expect to complete this diverse ride in about 3 hours and 50 minutes. The trail offers a mix of paved paths, gravel, and dirt sections, guiding you through open fields and shady tree corridors. As you cycle, you will enjoy views of distant mountains and the iconic Flatirons, providing a scenic backdrop to your journey.
Planning your ride is straightforward, as this multi-use route is accessible throughout the year. The Boulder Valley Ranch area is known for drying quickly after snow, making it a good option even in winter months. Be aware that while generally well-maintained, the LOBO Trail can have surface changes, and some parts require riding on local roads. You will find parking available at various access points along the connected trails, making it easy to start your adventure.
This route stands out for its rich natural environment, offering glimpses of working ranches and abundant wildlife. Keep an eye out for raptors and mule deer as you pass by the tranquil Boulder Reservoir and the scenic Twin Lakes area. The trail provides a unique opportunity to experience the rolling hills north of Boulder, combining natural beauty with accessible cycling.
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Elevation 1,570 m
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Frequently Asked Questions
What are the fees and permits required to access Boulder Reservoir?
Access to Boulder Reservoir Regional Park requires an entrance fee, which varies for residents and non-residents. Additionally, specific activities like boating necessitate a City of Boulder boat permit. It's advisable to check the official City of Boulder Parks and Recreation website for the most current fee schedule and permit requirements before your visit.
Are there specific rules for bringing dogs to Boulder Reservoir?
Boulder Reservoir has a pet policy in place to ensure the enjoyment and safety of all visitors and wildlife. Generally, dogs are permitted on trails and in designated areas but must be kept on a leash. There may be restrictions on dogs in certain areas like the swim beach or during specific events. Always clean up after your pet and observe all posted signage regarding pet access.
What are the best trails for running or cycling at Boulder Reservoir, and what is their difficulty?
The most popular trail for running and cycling is the 5.3-mile Boulder Reservoir Loop Trail. This trail is generally considered easy due to its relatively flat terrain and paved or well-maintained gravel surface, making it suitable for all fitness levels and families. It offers continuous views of the water and surrounding landscape. While the intro mentions the loop, this answer specifies its difficulty and surface.
How accessible is Boulder Reservoir via public transport, and what are the parking options?
Boulder Reservoir is approximately 15 minutes from central Boulder by car, and ample parking is available on-site. However, parking lots can fill up quickly, especially on weekends and during special events. For public transport, you would typically need to combine an RTD bus route with a walk or bike ride, as direct bus service to the entrance may be limited. Checking RTD schedules for routes serving the northern Boulder area is recommended.
What unique wildlife can visitors expect to see at Boulder Reservoir?
Boulder Reservoir is a haven for various wildlife. Beyond common sightings, visitors often spot osprey diving for fish, various raptors, and herons near the water. On land, you might encounter owls, rabbits, snakes, and prairie dogs. The reservoir's diverse habitats support a rich ecosystem, making it an excellent spot for wildlife viewing.
What are the best activities for families with young children at Boulder Reservoir?
Boulder Reservoir is very family-friendly. Besides the expansive swim beach with lifeguards, families can enjoy easy walks or bike rides on the 5.3-mile loop trail, picnicking at one of the 13 designated sites, and renting paddleboards or kayaks. The park also features sand volleyball courts and horseshoe pits, providing a variety of options for all ages.
Are there any cafes, pubs, or accommodation options directly near Boulder Reservoir?
While Boulder Reservoir itself offers snack shops during peak season, there are no cafes, pubs, or hotels directly adjacent to the park. For dining and accommodation, visitors will find numerous options within a 10-15 minute drive in central Boulder, ranging from casual eateries to upscale restaurants and various hotel choices.
What are the specific conditions for winter access and activities at Boulder Reservoir?
Boulder Reservoir remains accessible in winter, offering a different experience. When conditions allow, ice fishing becomes a popular activity. Trails are generally open for walking and running, though they may be snow-covered or icy, requiring appropriate footwear. Always check the park's official website for current conditions and any specific closures or safety advisories during winter months.
What is the maximum depth of Boulder Reservoir, and how does it get its water?
Boulder Reservoir has a maximum depth of 28 feet. It primarily receives its water from Colorado's Western Slope through the Alva B. Adams Tunnel and the Boulder Feeder Canal, both integral parts of the Colorado-Big Thompson Project. This system ensures a consistent water supply for municipal use in Boulder and agricultural purposes.
Can I rent equipment for water activities at Boulder Reservoir?
Yes, visitors can rent equipment for various water activities directly at Boulder Reservoir. Rental options typically include paddleboards and kayaks, making it convenient for those who don't own their own gear to enjoy the water. Sailing lessons are also available for those interested in learning to sail.