State of the Great Outdoors:

State of the Great Outdoors is an independent, bipartisan assessment of supply, demand, and financing trends in American outdoor recreation for the purposes of policy development undertaken by Resources for the Future and the Outdoor Resources Review Group.

Banking on Nature:

Banking on Nature is the US Fish and Wildlife Service's periodical analysis of the economic effects of national wildlife refuges on local, regional, and national scales.

The Outdoor Recreation Economy:

The Outdoor Recreation Economy is a report on the state of outdoor recreation as an economic force in the U.S. which is put out by the Outdoor Industry Association.