Discussions about the possibility of cross-jurisdictional water marketing in the Colorado River Basin have resumed after breaking off in the 1990s. This project will examine what was learned during previous discussions and what is known about water markets to assess how this policy mechanism could improve adaptability.  It will also involve the development of a centralized database of federally reserved water rights for tribes, including compilation of information on whether tribes in the Colorado River basin have quantified rights and whether those rights can be marketed or leased.