There are several awards that one can earn for camping, hiking, and backpacking. Here are some of them.
The 50-Miler Award may be earned by those who plan and hike (or use a non-motored boat) a trail or waterway at least 50 miles long. They must complete a service project as well to be eligible for the award.
Award Requirements: http://www.scouting.org/scoutsource/BoyScouts/AdvancementandAwards/MeritBadges/fifty.aspx
Award Application: http://www.scouting.org/filestore/pdf/430-067_WB.pdf
Historic Trails Award
The Historic Trails Award may be earned by those who plan and hike a historical trail, and complete a service project or public event for the trail.
Award Requirements: http://www.scouting.org/scoutsource/BoyScouts/AdvancementandAwards/MeritBadges/trail.aspx
Award Application: http://www.scouting.org/filestore/pdf/34408.pdf
National Outdoor Badges
This is a new award from the BSA that tests your knowledge and skill in the outdoors. It is divided into five sections, which cover Riding, Hiking, Camping, Aquatics, and Adventure.
Award Requirements: http://www.scouting.org/scoutsource/BoyScouts/Youth/Awards/NOA.aspx
National Outdoor Challenge
This award replaces the old National Camping Award, and can be earned by troops.
Award Requirements: http://www.scouting.org/filestore/pdf/430-016_WB.pdf