H.R.4113: To expand the Alpine Lakes Wilderness in the State of Washington, to protect the complete watershed of the free-flowing Pratt River as a Wild River, and for other purposes.

Alpine Lakes Wilderness Additions and Wild Pratt River Act of 2007 - Designates certain land in the Mount Baker-Snoqualmie National Forest in the state of Washington, which shall be considered to become a part of the Alpine Lakes Wilderness, as wilderness and as a component of the National Wilderness Preservation System.

Amends the Wild and Scenic Rivers Act to designate the Pratt River in Washington state as a wild river.