Senators Mark Udall (D-CO) and James Risch (R-ID) have created the Senate Outdoor Recreation Caucus. The aim of the Caucus is to encourage healthy, active lifestyles that foster an appreciation of America's lands and waters through participation in outdoor activities such as camping, climbing, hicking, fishing, rafting, skiing, hunting and many others.
According to ChooseOutdoors.org The two senators are actively recruiting fellow Senators to join the caucus.