Also known as Amon Sûl, Weathertop was the southernmost point of the Weather Hills, and was slightly separated from them. At its top was an ancient Arnorian tower, which was later given extensive fortifications. It was the home of one of the Palantiri, and also the source of much contention between Cardolan, Rhudaur, and Arthedain. Eventually, the Witch-King took it from the Dunedain, and wrecked it (altho the Palantir survived). Even more famously, it was here that Aragorn, Frodo, and his buds faced down 5 Ringwraiths, with Frodo being near-mortally wounded.
In the RP, this is a very small region, that borders only Bree, Cardolan, and the Lone-Lands. I think it provides the standard 1,000 MWE and 100 SWE for claiming, but you should probably check at the RPDT just to be sure. Enjoy!
The day of prosperity makes one forget adversity; The day of adversity makes one forget prosperity.