Singletracks iconSingletracksSep 15, 2026

Trail builders in a tiny Alaska town are using crushed shale for jumps and berms

Thunder Mountain Bike Park in Juneau uses locally-sourced crushed shale to build weather-resistant trails that require minimal maintenance in Alaska's wet climate.

Trail builders in a tiny Alaska town are using crushed shale for jumps and berms

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Thunder Mountain Bike Park in Juneau uses locally-sourced crushed shale to build weather-resistant trails that require minimal maintenance in Alaska's wet climate.

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Thunder Mountain Bike Park in Juneau uses locally-sourced crushed shale to build weather-resistant trails that require minimal maintenance in Alaska's wet climate.

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