Through the Challenge Cost Share Program (CCSP), the NPS assists and supports the work of its partners. The types of projects are wide-ranging, but always related to national historic trails. These include projects involving original research on trail-related topics, development of outdoor wayside exhibits, resource preservation activities, or creation of educational materials.
In case you didn't know, staff with the National Trails Intermountain Region administer nine national historic trails:
El Camino Real de Tierra Adentro National Historic Trail (jointly with the Bureau of Land Management)
Old Spanish National Historic Trail (jointly with the Bureau of Land Management)