A University of Colorado at Â鶹¹ÙÍø law professor known for championing American Indian and western environmental legal issues has received the university's largest single honor for teaching and research, the Hazel Barnes Prize. Charles Wilkinson, 60, will receive the prize, which carries a $20,000 award, at CU-Â鶹¹ÙÍø's summer graduation ceremony where he will deliver the commencement address.