Flag Mountain
6,900 ft | 1 trails | South Dakota
6,900 ft
1 routes
Easy
About Flag Mountain
Flag Mountain is a 6,900-foot summit in South Dakota. The Flag Mountain Trail is a 0.9-mile hike with about 292 feet of elevation gain. Nearby peaks include Nipple Butte, White Tail Peak and Hat Mountain. Trail data is sourced from OpenStreetMap contributors (ODbL); verify current conditions with the official land manager before you go.
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Check Current Conditions
Trail conditions change frequently. Check the official land manager's site (linked under Data Sources on this page) and the NWS forecast before your hike.
Frequently Asked Questions
How long does it take to hike Flag Mountain?
Hiking time varies by trail and fitness level. Most popular routes take 4-8 hours round trip. Check individual trail descriptions for specific estimates.
Is Flag Mountain hard to hike?
Difficulty varies by route. There are options ranging from moderate to strenuous. Beginners should start with easier trails and work up to more challenging routes.
Do I need a permit to hike Flag Mountain?
Most trails don't require permits for day hiking. Some trailheads may require a parking pass or fee. Check current regulations before your visit.
Safety Information
Current Hazards
- Afternoon thunderstorms
- Dehydration risk
- UV exposure above treeline
Turn-Around Time
1:00 PM (2:00 PM summer)
Plan to reach the summit by this time to allow safe descent before dark.
Essential Gear Checklist
* Critical items - do not hike without these
Emergency Contacts
Nearby Peaks
Explore other mountains near Flag Mountain. Great for peak-bagging or planning your next adventure.
Nipple Butte
6,798 ft
White Tail Peak
6,965 ft
Hat Mountain
6,719 ft
Crows Nest Peak
7,044 ft
Peak Bagging Tip
Nipple Butte is only 1 miles away. Consider combining these peaks for a bigger day or overnight trip!