Human: Make a concise location description of a cliffside wilderness setting with a ledge and a roiling river far below. Assistant: 
A small ledge here clings desperately to the main outcropping, overlooking a vast dark emptiness. A step onto the ledge dislodges small bits of scree that skid across and down to fall in silence into the darkness -- the ledge is fighting a losing battle against weather and time. From far below in the silence comes the barest sound of water roiling and churning.