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Gear up for your next adventure:

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⌚GPS Sports Watch - GPS watch for running, hiking and training

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McCosker Loop Trail trails

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McCosker Loop Trail

United States > California > Contra Costa County > Canyon

Sibley Volcanic Regional Preserve

Distance: 2.6 mi • Elevation gain: 531 ft • Maximum elevation: 1,220 ft

Gear up for your next adventure:

🥘Titanium Cookware - Durable, featherlight pots and pans for backpacking

🕶️Glacier Sunglasses - Side shields to protect eyes from high-altitude snow glare

🪶Wildlife Field Guides - Learn animal tracking and species ID

🧴Hand Sanitizer - Keep hands clean while hiking

🍳Camping Cook Set - Complete cookware for outdoor meals

As an Amazon Associate, this site earns from qualifying purchases at no extra cost to you.