In reply to Spuddy1990:
There is an OP that will by flying a Red Flag, right on top of Standon Hill. Possibly a friendly German Shepard sat there just waiting for a nice snack too. Or a sentry on a Quad bike.
Actually the dogs I have come across are incredibly well trained. They get ahead of you and bark until the sentry/ handler catches up. Been there done that. Friendly chat and on my way each time, as I was still well away from the rage boundary and not intending going that way.
As the others have said, Simply start your walk further North. Dartmoor Inn car park, the one up the lane to the left of the Inn. Not at the Inn it's self. Or Sourton Church car park, mid week, is another favourite of mine.
Have a good one anyway.