Alpine Lakes Wilderness Additions and Pratt and Middle Fork Snoqualmie Rivers Protection Act - Designates as wilderness and as a component of the National Wilderness Preservation System and considers as part of the Alpine Lakes Wilderness certain federal land in the Mount Baker-Snoqualmie National Forest in the state of Washington that is within the proposed Alpine Lakes Wilderness Additions Boundary.
Makes any land or interests within the proposed boundary acquired by the United States part of the Wilderness.
Amends the Wild and Scenic Rivers Act to designate the Middle Fork Snoqualmie and Pratt Rivers in the state of Washington as scenic and/or wild rivers.