There's a wealth of information that can contribute to a better understanding of management of our public lands. At the National Council for Science and the Environment, "a not-for-profit organization dedicated to improving the scientific basis for environmental decisionmaking," there are a number of reports on public lands, many prepared by the Congressional Research Service.
To make the Traveler more of a resource, we're developing a library to house these and other studies topical to the national parks. The first addition is a CRS study on Recreation on Federal Lands, which looks closely at motorized recreation in national parks. It's attached below as a pdf.
This and future additions to the library can be found by going to the "Library" section of our content topics.