Sims Flat Campground (Ca)
Federal campground in Shasta-Trinity National Forest
Location: CA, CA
Price: From $15 per night
Rating: 2.5 out of 5 (2 reviews)
Season: May through October
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.
Cell coverage (FCC estimate): strong signal. Actual signal may vary in remote areas. Best carrier: T-Mobile. Verizon 4G: 100%. AT&T 4G: 100%. T-Mobile 4G: 100%.
Amenities: Fire Rings, Picnic Tables
Availability alerts: Set a free cancellation alert at camperwatch.org/campground/sims-flat-campground-ca to be notified when sites open up.
Affordable first-come, first-served camping at $15/night with fire rings and picnic tables. Campers report sweet spot for road trips with nice views on historical trail and good fishing.
Wildlife alert: American Shrewmole, Mountain Song Sparrow, MacGillivray's Warbler, Common Merganser, Turkey Vulture, Western Fence Lizard, Shasta Alligator Lizard, California Mountain Kingsnake
Insider tips for Sims Flat Campground (Ca): Arrive early to secure one of the single tent site available on first-come, first-served basis Download Recreation.gov mobile app before arrival to use Scan and Pay feature for site payment Book early as this federal campground fills up quickly
Skip Sims Flat Campground (Ca) if: Noise-sensitive — frequent train whistles and passages day and night reported by multiple campers. Seeking hookups — no hookups available at this campground. Visiting outside May-October — seasonal operations only.
Best time to visit Sims Flat Campground (Ca): May-October — Campground operates seasonally May through October only.
Nearby campgrounds: Girard Ridge Lookout (MCCLOUD, CA), Mccloud Bridge (Redding, CA), Pine Point (Shasta Lake, Ca) (Lakehead, CA), Hirz Mountain Lookout (REDDING, CA).
Cell Phone Coverage at Sims Flat Campground (Ca)
Cell signal at Sims Flat Campground (Ca) (CA): strong overall signal based on FCC broadband data. Best carrier: T-Mobile.
- Verizon 4G LTE: 100% coverage
- AT&T 4G LTE: 100% coverage
- T-Mobile 4G LTE: 100% coverage
Coverage data source: FCC Broadband Data Collection (BDC). Actual signal may vary due to terrain, tree cover, and distance from towers. Camper reports are more reliable than coverage maps in remote areas.
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.
Verified facts
RIDB / Recreation.gov official databaseAmenities
RIDB /facilities /campsites · owner-verifiedStraight talk
CamperWatch intel · curated from camper reportsKnown issues, each with the workaround. Read before you book.
Insider tips & when to go
CamperWatch intel · hand-curated entryArrive early to secure one of the single tent site available on first-come, first-served basis
Download Recreation.gov mobile app before arrival to use Scan and Pay feature for site payment
Book early as this federal campground fills up quickly
Campground operates seasonally May through October only
Things to do nearby
RIDB /activities /recareas + intelConditions today
LiveCell signal
FCC BDC · quarterly datasetFCC maps are theoretical — camper reports confirm signal. Best carrier: T-Mobile.
Wildlife nearby
iNaturalist · research-grade · 8 km
Campground entrance
Google Maps APICommunity
#community · posts, photos & Q&A · AI-moderated (Claude Vision)Pro tips
- Book on recreation.gov exactly 6 months ahead at 10am ET — Shasta-Trinity National Forest fills fast in peak season.
- Check current road conditions at Shasta-Trinity National Forest before arrival — seasonal closures common.
Frequently asked questions
RIDB facts + intel · FAQPage schema, speakableHow much does Sims Flat Campground (Ca) cost per night?+
What season is Sims Flat Campground (Ca) open?+
Does Sims Flat Campground (Ca) have hookups?+
What is the maximum RV length at Sims Flat Campground (Ca)?+
How do I make reservations at Sims Flat Campground (Ca)?+
What is the cell service like at Sims Flat Campground (Ca)?+
What season is Sims Flat Campground (Ca) open, and what are check-in times?+
●Data sources on this page
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