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Sagebrush Steppe Treatment Evaluation Project, known as SageSTEP, is an interdisciplinary, five-year research program that is exploring ways to improve the health of sagebrush rangelands across the Great Basin. The project is funded by the federal government’s Joint Fire Science Program (JFSP) and is a collaborative effort among five universities, six federal agencies, and one non-governmental organization. This study seeks to address the rapid loss of healthy sagebrush rangelands in the Great Basin due to invasion of cheatgrass (a highly flammable non-native weed), severe wildfires, and expansion of pinyon and juniper woodlands.