> Departments > Natural Resources > Park Areas > Reservable Group Areas

Reservable Group Use Areas at Carter Lake, Flatiron Reservoir,
Horsetooth Mountain Open Space, and Horsetooth Reservoir

Call (970) 679-4570 for information or to reserve for your group.

Carter Lake Group Use Area at South Shore Campground

photo of reservable area photo of reservable area

Flatiron Reservoir Group Use Area

photo of reservable area

Horsetooth Mountain Open Space Group Use Area

photo of reservable area photo of reservable area

Horsetooth Reservoir Group Use Area at South Bay Campground

photo of reservable area photo of reservable area

The Details

  • 100 people maximum capacity at Carter Lake and Horsetooth Reservoir group use areas
  • 75 people maximum capacity at Flatiron group use area
  • 50 people maximum in each pavilion at Horsetooth Mountain Open Space - 100 altogether
  • Covered pavilions with picnic tables, grills, electricity
  • Volleyball court & horseshoe pits available at reservoirs only (bring own sports equipment - net, balls, horseshoes, etc.)
  • Parking for 15 cars - special arrangements may be made for more
  • At Horsetooth Reservoir South Bay, a very large grill is available upon request

Fees

  • $100 per day AND a park entrance permit (daily or annual) for each vehicle at reservoirs
  • $50 per day for one pavilion or $75 per day for both at Horsetooth Mountain Open Space plus entrance permit for each vehicle
  • $100 damage deposit

Rules

(all Natural Resources Regulations apply)

  • Day use only - 7 a.m. to 9 p.m. - no camping in the group use area
  • Alcohol policy - only 3.2 beer in cans - no kegs
  • No glass containers
  • No noise disturbances to other park users