How do you use tweezers and brushes to "tune up" a cave? Volunteers at Oregon Caves National Monument will find out on September 26.
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Parks are famous as travel destinations, but for many of us, they represent more than just a road-trip. This fall, rock-climbers in Yosemite, backcountry hikers in Olympic, and students in Kentucky and Tennessee are gathering together in their favorite parks to give back to the places which have provided so much for them. You are welcome to join in.