Weeping Rock is a large bowl-shaped alcove where the lower layer of sandstone has eroded away; water that has been slowly descending within the sandstone formations reaches an impermeable layer of rock and is forced out the side causing the "weeping". The weeping walls form a beautifully lush hanging garden with a little flowing stream below. While there are many weeping walls in Zion, this is the featured one with a paved trail and platformed viewing area constructed under the alcove back in the early days of the park. Unfortunately, when I visited Zion there was almost no water there...