Antero Reservoir

Antero Reservoir closed for dam repairs
Antero Reservoir closed to the public on June 1, 2015 so it could be drained in preparation for work to rehabilitate Antero Dam. Recreation in and around Antero will remain closed until the reservoir can be refilled and restored to its normal operation, late 2017 at the earliest.

In the meantime, check out this interactive map to see dozens of other recreational opportunities in Park County.

Antero Reservoir
An extinct volcano, Buffalo Peaks, looms above Antero.

Owned and Operated by Denver Water
Reservations: Not Accepted
Elevation: 8,942 feet (2,656 meters) — high water line
Capacity: 19,881 acre feet (1 acre foot = 325,851 gallons)
Denver Water Customer Care: 303-893-2444
U.S. Forest Service: 719-545-8737
Colorado Parks and Wildlife: 303-291-7227


Antero is derived from the Spanish word "first," as it was the first dam on the South Platte River near the river's origin. Antero Dam is an earth-fill dam built in 1909. Geologists believe the reservoir occupies the site of a former lakebed, probably no more than 300 years old. Green Lake lies submerged within Antero Reservoir.


  • Take Highway 285 to Fairplay
  • About a mile south of Fairplay veer southeast on Highway 9 toward Hartsel
  • After about 15 miles you will reach a stop sign at the intersection with Higway 24. Turn right (west) on Highway 24
  • The entrances to Antero Reservoir will be on your right
  • The entrance to the north access will be first and the entrance to the south access next

Seasonal Information

Open year round

Operating Hours

24 hours a day

Special Events

Must be approved by Denver Water.

Recreation Opportunities

Overview of available activities

Motor Boating

Because of the June 1, 2015, closure, neither motorized boats nor trailered boats will be allowed because there will be no aquatic nuisance species (ANS) boat inspections in 2015.

Current water elevation at Antero.

Small Water Craft
small watercraft

Because of the June 1, 2015, closure, hand-launch boats, such as rowboats, canoes, kayaks and float tubes, will be allowed on the reservoir from ice-off through May 31, 2015. However, the south boat ramp will be closed during this period.

Both lake and stream fishing is available.
Ice Fishing
ice fishing
Ice fishing when conditions permit. Denver Water does not monitor ice conditions and those entering onto the ice should be aware of changing ice conditions and proceed at their own risk.
Because of the June 1, 2015, closure, camping will be allowed until May 31, 2015. There are 38 campsites available at the south side campground and boat ramp.
The north side area is day use area only, no camping is allowed.

Note: Water contact sports such as swimming, water skiing, wading, and scuba diving are prohibited.

Other rules and regulations.