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✅ Amenities & Features
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📖 About This Campground
Obsidian Flat Group Campground is located near Deadman Creek outside of Mammoth, CA, Obsidian Flat Group Campground is an opportunity for a secluded get-away for your group. Exploring the surrounding pine forest and geology are popular activities along with nearby hiking, bicycling, off-high vehicle trails, and fishing opportunities.