Green Mountain Lookout Heritage Protection Act - Amends the Washington State Wilderness Act of 1984, with respect to certain lands in the Mount Baker-Snoqualmie and Wenatchee National Forests in the state of Washington designated as part of the Glacier Peak Wilderness, to specifically allow the operation and maintenance of Green Mountain Lookout.
Prohibits the Chief of the Forest Service from moving the Lookout from its current location on Green Mountain in the Mount Baker-Snoqualmie National Forest unless the Secretary of Agriculture (USDA) determines that its move is necessary to preserve the Lookout or to ensure the safety of individuals on or around Green Mountain. Requires the Secretary, if such a determination is made, to move the Lookout to a location outside of the lands described in this Act, above.