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Fall weekdays are the sweet spot here. Daytime highs in the 50s to 70s, cool nights, and lighter crowds after Labor Day make this the right call for anyone who can show up flexible and doesn't need a guaranteed site waiting.
Price
$15/night
Booking
Walk-in Only
Sites
Varies
Season
Year-round
Cell
Unknown
Pets
Check Policy
Price
$15/night
Booking
Walk-in Only
Sites
Varies
Season
Year-round
Cell
Unknown
Pets
Check Policy
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Learn more about alerts →Sims Flat Campground (Ca)
48.1314, -103.2376
We'll monitor this campground and alert you the moment sites become available.
Free to start · paid plans add 2-min scans
256,000+ sites monitored · Email alerts to start; SMS and in-app with an account
Learn more about alerts →Fall weekdays are the sweet spot here. Daytime highs in the 50s to 70s, cool nights, and lighter crowds after Labor Day make this the right call for anyone who can show up flexible and doesn't need a guaranteed site waiting.
No cell service means the Recreation.gov Scan and Pay QR code may not work on arrival, so come with a backup payment plan. Anyone who needs a confirmed reservation before leaving home has no option here.
Official information for Sims Flat Campground (Ca) from the federal Recreation.gov facility record. View official page →
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.
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Best season: fall. Fall offers the most comfortable conditions for camping at Sims Flat — generally milder daytime temperatures and crisp, clear nights that make hiking, stargazing, and campfires especially pleasant. Depending on elevation and location within California, expect daytime highs commonly in the mid-50s to mid-70s °F and nights dropping into the 30s–50s °F; weather is typically more stable than spring and less smoky/hot than peak summer. Crowds thin after Labor Day and weekdays are notably quieter, but Peak months: October, September, May, June
Overview: 'Best season: fall' with milder temps and clear nights called out.
This location is first-come, first-served; visitors are required to physically arrive at the campground to purchase and claim a site. On-site payment may be possible by scanning a QR code using the Recreation.gov mobile app (Scan and Pay); visitors are advised to download the app prior to arrival as some remote areas have limited or no cellular service.
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