The Blackbrook River, also known as the Blackabrook River, is a tributary of the West Dart River
The river's source at Blackbrook Head in the Merrivale Range Danger Area just north of Black Dunghill, from which it flows south. As it crosses the moor, it soon leaves the Merrivale Range and past Fice's Well before crossing the B3357 road. It then flows to the east of Princetown before being crossed by the B3212 road. The river then heads east onto the moor again, where it meets the West Dart River.
A clapper bridge is a primitive form of stone bridge made by laying large slabs of rock across stone piers. Classically, clapper bridges were built near fords, situating them close to established paths, and some were quite large.
The headline coordinates take you to the centre of the clapper Bridge, the cache container is about 50 meters down river on the right bank.
The Little Bridges series was started by Stanthews in 2009 to highlight small footbridges in remote parts of Wiltshire. Since then the series has been expanded by others all over the country and starting to spread fast. There is a stats listing run by Bloodsock, so you can see how many Little Bridges you have found, you can find it here:- https://littlebridgesseries.wordpress.com/ . If you would like to add to the series, please contact Stan on email@example.com and he will give you a number for your bridge, to qualify, the bridge must be a foot bridge too small for vehicles, please make sure your title exactly matches “Little Bridges # xxxx then the name” including spaces so it will get picked up and added to stats list.