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Dartmoor Ten Tors trek changes 'a success'

11 May 2014 Last updated at 16:58 BST

The Army says the new route brought in to improve safety on the Ten Tors two-day trek across Dartmoor has been a real success.

More of the checkpoints were moved to the edge of Dartmoor and the teenagers had tracking devices with an emergency call button in case they got into difficulty.

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