USDA Forest Service · Colorado
Flat Rocks Campground
USDA Forest Service · Colorado, United States
- Sites
- 4
- Hookups
- 1 no hookups
- Season
- May 7 to September 18
- Drinking water
- Yes
- Restrooms
- Yes
- Elevation
- 8,182 ft
- Dark sky
- Bortle class 4
- Cell coverage
- T-Mobile none · AT&T none · Verizon none (carriers' 4G LTE filings to the FCC, 2025-12; not measured here)
- Access road
- FLAT ROCK CG (NFSR 300.T) · native material · suitable for passenger cars
- Lake
- PSICC
- Nearest town
- Castle Rock
- Phone
- N/A
1 numbered sites are mapped one by one - open the site map to pick yours.
About
Overview
This location is available on a first-come, first-served basis only. Visitors are required to physically arrive at the campground to purchase and claim a site. Once on-site, you may be able to pay for your campsite(s) by scanning a QR code using the Recreation.gov mobile app, and the Scan and Pay feature.
If this option is available, you will need to first download the free Recreation.gov mobile app https://www.recreation.gov/mobile-app prior to your arrival as some remote areas have limited or no cellular service.
Facilities
Flat Rocks Campground is a wooded campground with 19 campsites to accommodate both tents and recreational vehicles up to 30’ in length.
No electricity or hooks ups available. Water is available.
Contact Info
For facility specific information, please call (303) 647-2366.
Weather, month by month
| Month | Typical high | Typical low | Coldest night | Hottest day | Years with a night below 32°F |
|---|---|---|---|---|---|
| January | 32° | 4° | -28° | 52° | 11 of 11 |
| February | 34° | 6° | -27° | 54° | 11 of 11 |
| March | 42° | 18° | -13° | 66° | 11 of 11 |
| April | 53° | 23° | -12° | 68° | 11 of 11 |
| May | 59° | 35° | 7° | 77° | 9 of 11 |
| June | 77° | 46° | 34° | 85° | 0 of 11 |
| July | 80° | 51° | 43° | 89° | 0 of 11 |
| August | 76° | 49° | 41° | 84° | 0 of 11 |
| September | 73° | 45° | 19° | 84° | 1 of 11 |
| October | 60° | 31° | -4° | 72° | 10 of 10 |
| November | 48° | 21° | -13° | 65° | 10 of 10 |
| December | 34° | 8° | -15° | 53° | 10 of 10 |
Mid-month figures from 2016–2026 of daily weather at this spot (ERA5 reanalysis via Open-Meteo, CC BY 4.0), in °F. Typical is the median; coldest and hottest are the extremes seen.
Nearby campgrounds
- Rampart Range Recreation Area Designated Dispersed Camping · USDA Forest Service · 3 mi · 100 sites
- Indian Creek Equestrian Campground · USDA Forest Service · 4 mi · 7 sites
- Devils Head Campground · USDA Forest Service · 4 mi · 4 sites
- Osprey (CO) · USDA Forest Service · 5 mi · 13 sites
- Ouzel · USDA Forest Service · 5 mi · 13 sites
All public campgrounds in Colorado · Every state and province · Facts read from the operator 2026-02-25. Confirm fees, rules and current status with the operator before you go.