Flat Mtn Arm S
Yellowstone has a designated backcountry campsite system and a Backcountry Use Permit is required for overnight stays. (via site)
Key facts
At-a-glance details for Flat Mtn Arm S, from its official website.
Booking & season
Pitches & accommodation
Facilities & details
Amenities and on-site features reported for Flat Mtn Arm S.
Know before you go
Practical things to prepare for a trip to Flat Mtn Arm S.
- This is a backcountry site — you'll need to carry in your gear and water.
- Reserve ahead — this campground requires a booking.
- Bring cash for fees in case card payment isn't available on site.
Location
Where Flat Mtn Arm S sits on the map and how to get there.
What’s nearby
Shops, drinking water, fuel and attractions within reach of the site.
🏞️ Attractions
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🛒 Amenities & services
🛒 Groceries
- Convenience
⛽ Fuel
Sinclair
🍽️ Food & drink
- Grant Village Lake House Restaurant
- Grant Village Dining Room
- Village Grill
🚰 Drinking water
- Drinking water
🚻 Toilets & showers
- Public toilets
- Showers
Weather
Current conditions and the forecast to help you plan your trip.
Best time to visit
Typical monthly temperature and rainfall at Flat Mtn Arm S.
Good to know
Quick answers to common questions about Flat Mtn Arm S.
How much does it cost to camp at Flat Mtn Arm S?
Flat Mtn Arm S charges a camping fee.
Do I need to book ahead for Flat Mtn Arm S?
Yes, a reservation is required. You can check availability on the official website.
Can I bring an RV or caravan to Flat Mtn Arm S?
No, caravans and RVs aren't permitted here.
Can I pitch a tent at Flat Mtn Arm S?
Yes, tent camping is allowed.
How many sites does Flat Mtn Arm S have?
Flat Mtn Arm S has around 8 pitches.
Who runs Flat Mtn Arm S?
Flat Mtn Arm S is operated by National Park Service.
When is Flat Mtn Arm S open?
Flat Mtn Arm S is open year-round.
Reviews
Ratings, nightly prices and photos from people who’ve camped here.
No reviews yet — be the first!
Other campgrounds nearby
More places to camp close to Flat Mtn Arm S.
- Grizzly Bay · National Park Service
- Flat Mtn Bay · National Park Service
- Flat Mtn Arm N · National Park Service
- Bodego Bay · National Park Service
- Eagle Bay · National Park Service
- Wolf Bay · National Park Service