Isen River
The Fords of Isen Nightmare #7 (x3)
Location
2 (5)
River.  

While Isen River is in the staging area, each player cannot discard cards from his hand.

Forced: After Isen River becomes the active location, each player draws a card

Now further, and now nearer Isen flowed in its stony bed.
–The Two Towers