Resource management partnerships among a wide variety of agencies and private groups are increasing in number across the country. The Colorado Rockies Regional Cooperative represents an early example of a grassroots effort of 14 partners to cooperate in the areas of research, education, and resource management. The cooperative conducted a survey of existing resource management partners and partnerships to determine what is necessary to establish and sustain effective partnerships. Survey findings, recent literature, and the experience of the Colorado Rockies Regional Cooperative suggest specific strategies for sustaining effective resource management partnerships.