Dillon Reservoir is a high-altitude lake in Summit County, Colorado, celebrated for its sailing, kayaking, and sweeping views of the surrounding Rocky Mountain peaks.
Dillon Reservoir was created in the early 1960s when the Blue River was dammed to supply water to the Denver metropolitan area. The project permanently flooded the original town of Dillon, and on calm days local lore holds that the old town grid lies quietly beneath the surface. That layered history gives the reservoir a subtle depth beyond its obvious natural beauty, and interpretive signs around the shoreline help visitors connect with the landscape's past.
Today the lake is one of the premier sailing destinations in the Rocky Mountain region, largely because its open surface and consistent afternoon winds make conditions reliable throughout the summer. The Dillon Yacht Club hosts regattas that draw competitors from across Colorado, and the Dillon Marina offers rentals for those who prefer a more relaxed time on the water. Kayakers and stand-up paddleboarders share the surface with sailboats, while anglers work the shoreline for rainbow and brown trout.
On land, the paved recreation path encircling Dillon Reservoir passes through the towns of Dillon, Silverthorne, and Frisco, connecting cafes, parks, and trailheads along the way. The route offers continuous views of peaks including Buffalo Mountain and the Ten Mile Range, making even a casual walk feel like an achievement.
Summit County's combination of dramatic scenery, accessible outdoor recreation, and genuine mountain-town character makes Dillon Reservoir a destination that holds its own through every season, and a visit here offers a clear picture of why Colorado's high country inspires such lasting loyalty.
Visit during July and August for the most reliable sailing winds and the warmest afternoon temperatures at this elevation.
Try the paved 18-mile recreation path that circles Dillon Reservoir for an unhurried way to take in every angle of the shoreline.
Bring a light jacket even on sunny summer days, as afternoon thunderstorms and cool breezes roll in quickly at 9,000 feet.
Launch from the Dillon Marina for a sailing or stand-up paddleboard rental, one of the most convenient access points on the lake.
Arrive early on weekends to secure a parking spot at Frisco Bay, which fills quickly during peak summer months.
Experience class III rapids near Breckenridge and Vail with certified guides on a quick, thrilling river run.
Explore the Rocky Mountains on 2 wheels!
Family fun or adventurous hikes through incredible scenery
Guided SUP around Dillon Reservoir islands with scenery and wildlife
Ride Summit County trails with a guide who matches the route to your skills
Shuttle-lap the Salt Lick Trails with a guided ride from Silverthorne
Build confidence on the trail with a full-day mountain biking skills course
Build confidence and control on Summit County trails in a 2-day mountain bike skills course