Tree-crowned Hill
The Fellowship of the Ring #98 (x1)
Location
3 (6)
Hills.  

While Tree-crowned hill is the active location, each enemy gets -1Threat

Forced: When Tree-crowned hill is explored, the players, as a group, exhaust X characters in play. X is the number of damage here.

For their defense in the night the Company climbed to the top of the small hill... –The Fellowship of the Ring