The Greater Yellowstone Coalition was found in 1983 on a simple premise: an ecosystem will remain healthy and wild only if its kept whole. For nearly 35 years, we have been a pioneer in defining and promoting the concept of ecosystem management. Our offices, strategically placed in Montana, Wyoming, and Idaho, allow us to engage in a wide variety of efforts locally, regionally, and nationally to ensure Greater Yellowstone’s lands, waters, wildlife are protected now and well in the future.