Keanakakoi Crater Rim Road
Ancient quarry roads through volcanic glass fields
Keanakakoi Crater Rim Road traces the edge of Kilauea’s caldera to reach historic quarry sites where Hawaiian craftsmen once harvested volcanic glass for adzes, spear points, and cutting tools. The route splits off from Crater Rim Drive before the 2018 eruption damage, winding through native ohia forests and across older lava flows to reach the Keanakakoi quarry complex. These pits represent thousands of years of indigenous industry, with stone tool fragments still visible in the excavated walls and surrounding debris fields.
Moderate difficulty with loose volcanic rock requiring careful tire placement and momentum management. Stock 4WD handles most sections, but sharp obsidian fragments can puncture tires so bring a full-size spare and patch kit. Road access changes frequently due to ongoing volcanic activity and National Park Service closures. Check with Hawaii Volcanoes National Park rangers before attempting. Best during dry months when visibility is clear and road conditions are most stable. No camping allowed, but this connects to longer backcountry routes for those with proper permits.
Trail Specs
| Difficulty | Moderate |
|---|---|
| Trail Type | Backcountry |
| Surface | Dirt, Rock |
| Features | Historic, Remote, Scenic |
| Length (miles) | 8 mi / 12.9 km |
| Duration | 3-4 hours |
| Max elevation (ft) | 4100 ft |
| Best season | April-October |
| Minimum vehicle | Stock 4WD |
| Nearest town | Volcano, Hawaii |
| Land manager | National Park Service |
| Permit required | Yes |
| Cell service | None |
| Water crossings | No |
| Dispersed camping | No |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock Jeep Wrangler handle Keanakakoi Crater Rim Road?
Yes, any stock 4WD vehicle can handle this trail. The volcanic rock surface and moderate difficulty don't require lifted vehicles or aggressive tires.
Is the trail accessible during Hawaii's rainy season?
Best driven April through October when conditions are drier. Winter months bring heavy rains that can make the volcanic rock surface extremely slippery and dangerous.
Do I need a permit to drive Keanakakoi Crater Rim Road?
Yes, this trail requires a National Park Service permit since it's within Hawaii Volcanoes National Park. Contact the park directly for current permit requirements and availability.
What's the hardest part of this trail?
Navigating through the sharp volcanic glass fields where the old quarry roads become less defined. The jagged rock can be tough on tires and requires careful line selection.
Is there any cell service on the crater rim road?
No cell service once you're on the trail. Plan accordingly and let someone know your expected return time since you'll be completely out of communication.