Gross Reservoir

Gross Reservoir offers a variety of trails. The trail into Forsythe Canyon is often described as packed, flowing, and nontechnical, making it suitable for many hikers. It follows the creek and opens up to the reservoir's bed, offering a unique landscape to explore. For those seeking more challenging options, other designated trails around the reservoir provide varying terrain and distances. While the north side generally remains open, it's always good to check for current access restrictions due to the expansion project.

Yes, the trail into Forsythe Canyon is considered nontechnical and relatively easy, making it a good option for beginners and families. It's a pleasant walk alongside the creek. The area is generally family-friendly, with picnic areas available. However, be aware that the overall experience is more primitive, with limited amenities.

Parking at Gross Reservoir lake trailheads is available, but it's crucial to be aware of potential restrictions due to the ongoing expansion project. While the north side typically remains open, specific parking areas might be affected. It's advisable to check for current conditions before your visit. Arriving earlier in the day, especially on weekends, can help secure a spot.

No, there are generally no permits or fees required for general access to Gross Reservoir for activities like hiking, fishing, or non-motorized boating. However, specific regulations apply to activities like dispersed camping, and it's always wise to check with Denver Water or local authorities for any updated rules or restrictions, especially concerning the ongoing expansion project.

Gross Reservoir is generally dog-friendly, allowing visitors to bring their canine companions. However, dogs must be kept on a leash at all times to protect wildlife and ensure the safety and enjoyment of all visitors. Please remember to clean up after your pet to maintain the natural environment.

Gross Reservoir offers activities year-round. Spring and fall provide pleasant temperatures for hiking and fishing, often with beautiful foliage or blooming wildflowers. Summer is popular but can be crowded, and water levels might be lower due to the expansion project. Winter offers opportunities for ice fishing and snowshoeing, but conditions can be challenging, so always check the weather forecast and road conditions before heading out. The expansion project may impact water levels and access at any time of year.

Gross Reservoir is a great spot for wildlife viewing. Visitors often report seeing various bird species, including waterfowl and raptors. Mammals such as deer, elk, and smaller creatures like squirrels and chipmunks are also common. The reservoir's diverse ecosystem provides habitats for a range of animals, making it an excellent location for nature observation.

Gross Reservoir offers a more primitive outdoor experience with relatively few amenities directly on-site. There are picnic areas, but you should expect limited facilities like restrooms. There are no cafes or pubs immediately adjacent to the reservoir. For accommodation or more extensive services, you would need to travel to nearby towns like Boulder or Nederland, which are a short drive away.

No, swimming, wading, and cliff jumping are strictly prohibited at Gross Reservoir. These restrictions are in place to protect water quality, as the reservoir serves as a vital part of Denver Water's system. While non-motorized boating like canoeing, kayaking, and paddleboarding is permitted, direct water contact activities are not allowed.

The Gross Reservoir expansion project, which began in April 2022, is ongoing and aims to raise the dam by 131 feet. This significant construction will continue until around 2027. While the north side of the reservoir generally remains open to the public, visitors should anticipate lower water levels, some access restrictions, and potential construction noise or activity. It's always recommended to check Denver Water's official website for the most up-to-date information on closures or impacts before planning your visit.