Dewey Cone
11,408 ft | 1 trails | Hawaii
11,408 ft
1 routes
Strenuous
About Dewey Cone
Dewey Cone rises to 11,408 feet in Hawaii.
When to Go
The reliable snow-free window is roughly July through September. At this elevation, afternoon thunderstorms are a serious summer hazard — start early and plan to be off the upper mountain by midday. Outside that window expect snow travel and bring traction and navigation skills to match.
Know Before You Go
Download the GPX track from this page before you go — cell coverage is unreliable in the mountains and a saved route works offline in any GPS app. Conditions change: verify current access, closures and weather with the official land manager before you go. Trail data is sourced from OpenStreetMap contributors (ODbL).
Looking to link objectives or plan a weekend? Nearby summits include Na Puu Waenakonu, 1940 Cone and 1949 Cone — each has its own guide on this site.
Community Reviews
No Reviews Yet
Be the first to share your experience hiking Dewey Cone!
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
Are dogs allowed on the Dewey Cone trail?
Rules vary by land manager — national parks often prohibit dogs on trails, while most national forests allow them on leash. Check with the managing agency for this trail before bringing your dog, and pack out waste.
When is the best time to hike Dewey Cone?
July through September is the reliable snow-free window. Start early to avoid afternoon thunderstorms above treeline.
How tall is Dewey Cone?
Dewey Cone stands at 11,408 feet (3,477 meters) in Hawaii.
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
Emergency / Search & Rescue
911Summit Forecast
NWS Point Forecast →In most of the US, backcountry search and rescue is dispatched through 911 — tell the operator you have a hiker emergency and your GPS coordinates.
Nearby Peaks
Explore other mountains near Dewey Cone. Great for peak-bagging or planning your next adventure.