This is parking along the A386 between Mary Tavy (but after Wheal Betsy) and Lydford. There are a number of parking spots on the right hand side as you head north, two of which are gates for the firing range itself. The tracks from these parking areas give you easy access to White Hill and the firing range, however if the red flags are flying then no access is permitted. Obviously from these spots White Hill is an easy target, but you can go beyond into Dartmoor proper with Hare Tor, Sharp Tor and Tavy Cleave all possible. You can get around 8 or 10 cars in the northernmost car park, with around 1 or 2 cars possible in the other two.

The car park marked by the middle of the three arrows on the map above