When one looks at the map of Dartmoor it could be thought that it is neatly divided into 4 [but perhaps unequal] quarters with an obvious X of roads crossing roughly in the centre. Even if one doesn’t know much about Dartmoor, most people have heard of Princetown [and the prison], Haytor and of course the Two Bridges Hotel which are all near this crossroads at the heart of Dartmoor. The above coordinates are NOT where the cache is, but it is within one mile of the crossroads.
To find the cache you will need to find out the numbers of the B roads that actually cross to make this X at the heart of Dartmoor = ABCD and EFGH and the OS 1:25,000 Outdoor Leisure Map JK.
The cache is at N50 3A [J+J] [G-C] [E+F] W003 [K-F] [K-C] [A+B+D] [E-F] B Check no 49
Parking is available very close to the cache, but please be aware that it is on the main road [but which one?].