Trout Unlimited (TU) is a private, nonprofit organization with more than 150,000 members dedicated to conserving, protecting, and restoring trout and salmon fisheries and their watersheds in North America. TU staff and volunteer members engage in education programs, restoration projects, advocacy campaigns, and other conservation activities in support of the organization's mission. In 2001, TU launched a new national initiative named First Cast to teach students the principles of coldwater resource stewardship through the skills of fly-fishing.