Colorado
Cancellation alerts

Flatiron Reservoir

We watch every site at Flatiron Reservoir 24/7, then email you the moment a cancellation opens up.

96% of weekends booked at top sites·Peak Jun–Aug·25 sites
Set up an alert for Flatiron Reservoir

Pick your dates, pick the sites you want, we do the watching.

Park favorites

The 10 most popular campsites at Flatiron Reservoir

The hardest sites to book at this park, reserving 96% of weekend nights in peak season (Jun–Aug). Set up an alert and we'll email you on cancellations.

Site F16

Best here
Ranked #1 of 25
RV Electric · Sleeps 8 · Electric

Site F14

Top pick
Ranked #2 of 25
RV Electric · Sleeps 8 · Electric

Site F20

Standout
Ranked #3 of 25
RV Electric · Sleeps 6 · Electric

Site 527

Standout
Ranked #4 of 25
Campsite

Site F12

Standout
Ranked #5 of 25
RV Electric · Sleeps 6 · Electric

Site F17

Standout
Ranked #6 of 25
RV Electric · Sleeps 8 · Electric

Site F10

Standout
Ranked #7 of 25
RV Electric · Sleeps 8 · Electric

Site F13

Standout
Ranked #8 of 25
RV Electric · Sleeps 6 · Electric

Site F09

Standout
Ranked #9 of 25
RV Electric · Sleeps 8 · Electric

Site F33

Standout
Ranked #10 of 25
RV Electric · Sleeps 8 · Electric

These sites rebook within minutes of being cancelled. Set an alert at Flatiron Reservoir and we’ll email you the moment one opens up.

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About this park

Flatiron Reservoir is 47 acres of water surrounded by 200 acres of public land. It is located northwest of Carter Lake at an elevation of 5,470 feet and is part of the Colorado-Big Thompson Project operated by the Bureau of Reclamation and the Northern Colorado Water Conservancy District. The purpose of this water project is to divert water from the west slope to the east slope for drinking water, irrigation, and hydropower generation. Reclamation is solely responsible for power generation. The agencies jointly manage water levels for irrigation, municipal, and industry use. Recreation is managed by Larimer County Natural Resources. Flatiron Reservoir is a popular spot for fishing and family camping.