Chatfield State Park

Just 25 miles southwest of downtown Denver, Chatfield State Park proves you don’t need to drive to the mountains for a Colorado outdoor adventure. This 5,381-acre recreation paradise centers on the glittering Chatfield Reservoir—a 1,355-acre lake that draws boaters, swimmers, anglers, and paddleboarders seeking escape from the city. On any summer weekend, the water buzzes with sailboats, jet skis, and kayaks, while families stake out spots on the swim beach.

But Chatfield is far more than a reservoir. Over 26 miles of trails wind through cottonwood groves, prairie grasslands, and along the shimmering shoreline—welcoming hikers, mountain bikers, and horseback riders alike. The park’s 69-acre off-leash dog area is the largest in Colorado, a canine paradise where dogs can run, swim, and socialize. And when the sun sets behind the Front Range, 197 campsites offer front-row seats to alpenglow on the Rockies.

With its full-service marina, model airplane field, hot air balloon launches, and easy Denver access, Chatfield has become Colorado’s most-visited state park—welcoming 1.6 million visitors annually. Come for an afternoon paddleboard session or stay the weekend; either way, the park delivers a Rocky Mountain experience without the mountain drive.

Park Fast Facts

Chatfield Reservoir was created in 1975 by the U.S. Army Corps of Engineers for flood control on the South Platte River—but it quickly became one of Colorado’s premier recreation destinations. The park spans three counties (Douglas, Arapahoe, and Jefferson) and draws visitors from across the Front Range for water sports, camping, and trail activities.

Entry Fees & Passes

All vehicles entering Chatfield require a valid Colorado Parks & Wildlife pass. As of January 2025, the daily vehicle fee increased to $12. Colorado residents can save significantly with the Keep Colorado Wild Pass—just $29 when added during vehicle registration renewal, providing annual access to all state parks.

Reservoir & Water Activities

The 1,355-acre Chatfield Reservoir is the park’s centerpiece, offering everything from lazy paddleboard sessions to high-speed water skiing. The lake is surrounded by mountain views—on clear days, the Front Range provides a stunning backdrop that makes it hard to believe you’re just minutes from Denver.

The reservoir supports powerboats, sailboats, jet skis, kayaks, canoes, and standup paddleboards. A designated swim beach opens Memorial Day through Labor Day with sandy shores and calm, roped-off swimming areas. Anglers fish year-round for trout, bass, walleye, perch, and catfish—including ice fishing when the reservoir freezes in winter.

Chatfield Marina

The full-service Chatfield Marina sits near the south boat ramp, offering boat rentals, slip rentals, dry storage, fuel, and pump-out service. The marina also houses Seagull’s Restaurant—a casual lakeside eatery perfect for post-paddle burgers and sunset beers. Marina season runs April 1 through October 31.

Trails

Chatfield offers over 26 miles of multi-use trails for hikers, bikers, and equestrians. Twelve miles are paved and suitable for road bikes, strollers, and wheelchairs, while the remaining trails wind through natural surface paths along the reservoir, through cottonwood groves, and across prairie grasslands.

Note: Chatfield’s trails connect to the regional South Platte Trail, allowing cyclists to ride all the way to downtown Denver or south to Waterton Canyon.

Off-Leash Dog Area

Chatfield’s 69-acre off-leash dog area is the largest in Colorado—a canine paradise featuring open fields, wooded areas, and direct access to the reservoir for swimming dogs. The area is fenced and includes separate sections for large and small dogs. A daily or annual dog pass is required in addition to the vehicle pass.

Camping

Chatfield’s campground offers 197 sites across four loops, with most sites featuring full hookups (water, electric, sewer) or electric-only service. The campground is extremely popular—reservations open 6 months in advance and summer weekends book quickly. Mountain views from many sites make this one of Colorado’s most scenic RV destinations near Denver.

Reservations: cpwshop.com or (800) 244-5613 | Book up to 6 months ahead | Note: Daily park pass required ON TOP of camping fee.

Unique Activities

Beyond the reservoir and trails, Chatfield offers some surprisingly unique activities:

Best Times to Visit

Frequently Asked Questions

Written by

State Parks Team

Editorial Team

The America's State Parks Editorial Team has collectively explored 800+ state parks across all 50 states. Our park profiles are carefully researched using official state park data, verified visitor information, and first-hand observations from our writers and contributors. Each article is fact-checked against official sources and updated regularly to ensure accuracy. Our mission is to help every American discover the natural wonders in their own backyard.

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