Dillon Reservoir, sometimes referred to as Lake Dillon, is a large fresh water reservoir located in Summit County, Colorado, south of I-70 and bordered by the towns of Frisco, Silverthorne, and Dillon. It is a reservoir for the city of Denver, and its waters are under the control of Denver Water. Popular ski areas are close to the reservoir, including Copper Mountain, Keystone, Arapahoe Basin, and Breckenridge.
The idea to dam the Blue River and divert the water to Denver originated in the early 1900s. Denver Water Board acquired most of the land needed for the reservoir for the price of back taxes during the Great Depression when many Dillon residents were unable to pay property taxes. By then, Denver Water Board had already acquired most of the water rights in the valley. In 1956, Denver Water Board notified the remaining residents and business owners they must sell and leave by September 15, 1961. Dam construction began in 1961 and was completed in 1963. The dam diverts water from the Blue River Basin through the Harold D. Roberts Tunnel under the Continental Divide into the South Platte River Basin. Dillon Dam is earth-filled, 5,888 feet long, and rises 231 feet above the Blue River stream bed. The remains of the ghost town under the reservoir is a spectacle for divers who want to see Dillon’s past.
- Surface area (mi)
- 8.08
- Max depth (ft)
- 219.82
- Elevation (ft)
- 7230.97
- Shoreline length (mi)
- 26.78
Ideal for
- Family friendly:
- Pet friendly:
- Romantic getaways:
Popular activities
- Boating
- Kayaking
- Canoeing
- Fishing
- Freshwater Fishing
Islands
Amidst the breathtaking backdrop of the Rocky Mountains, serene islands occasionally emerge from the crystalline waters of Lake Dillon, enchanting visitors with their unspoiled beauty. Home to diverse wildlife and exquisite flora, these islands hold a quiet charm steeped in the region’s storied past as a hub for mining and timber. Although visitors often traverse the lake’s shores, it is the islands that capture the imagination, offering secluded spots for picnics and serene lookouts that invite stunning photographic opportunities. Trails meander here, providing intimate encounters with nature and sweeping views of the surrounding mountains. One can wander along paths lined with wildflowers or stop to gaze at the distant peaks reflected in the water. The tranquil islands serve as crucial habitats for avian species, striking a balance between recreation and conservation, ensuring the enchanting legacy of Lake Dillon endures.
Nearby amenities
For a well-rounded experience by Lake Dillon, travelers will find numerous amenities catering to both adventure seekers and those looking to relax. Begin with the Dillon Marina, which offers boat rentals, jet ski rentals, and a boat ramp for easy water access. For fishing enthusiasts, the Marina has a bait and tackle shop alongside a designated fishing area. Dining options include the lakefront restaurant, the Tiki Bar, which boasts a scenic patio for a relaxing meal and views. Nearby, the convenient Dillon General Store provides essentials, while market-goers can check out the local farmers’ market in summer.
Public parking facilities are available, ensuring easy access for all visitors. Outdoor enthusiasts can explore miles of hiking trails and mountain biking routes surrounding the lake. For those who prefer a more leisurely time, there are picnic areas equipped with BBQ grills. Whether you choose to glide across the water or take in the sights from the shore, Lake Dillon offers a broad selection of enjoyable amenities.
Where to stay
Frequently Asked Questions
Ready to dive into what Lake Dillon has to offer? Let’s tackle some of the burning questions you might have as you plan your visit!
-
No, swimming is not allowed in Lake Dillon. This is due to cold water temperatures and water quality issues, making it unsafe according to Denver Water, the reservoir’s manager. Only wading while standing on the ground is permitted under new rules.
-
Lake Dillon is a popular destination because it offers 26 miles of shoreline for various activities. You can enjoy boating, sailing, fishing, and scenic boat tours on the lake. The surrounding area also has hiking and biking trails, and it’s close to ski resorts like Arapahoe Basin.
-
There are no specific regulations for catching char in Lake Dillon, Colorado. Lake Dillon is the only reservoir in Colorado with an Arctic Char fishery, but the regulations focus on protecting brown trout, requiring all brown trout over 14 inches to be returned to the water immediately. General Colorado fishing regulations apply to char.
-
The best beach at Lake Dillon for families is Marina Park. It has a sandy beach, a playground, and a lawn, making it suitable for various family activities. The park also offers beautiful views and access to the lake.
-
Towns near Lake Dillon include Silverthorne, Frisco, Keystone, and Breckenridge. These towns are all located in Summit County and are close to the lake, which is also known as Dillon Reservoir. They are accessible via Interstate 70 and offer various amenities and recreational activities.