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.