The Northeast Region of the National Park Service (NPS) comprises national parks and related areas in 13 New England and Mid-Atlantic states. The diversity of parks and their resources are reflected in their designations as national parks, seashores, historic sites, recreation areas, military parks, memorials, and rivers and trails. Biological, physical, and social science research results, natural resource inventory and monitoring data, scientific literature reviews, bibliographies, and proceedings of technical workshops and conferences related to 38 of these park units in Maryland, New Jersey, Pennsylvania, Virginia, and West Virginia are disseminated through the NPS/NERCHAL Technical Report and Natural Resources Report series. The reports are a continuation of series with previous acronyms of NPS/PHSO and NPS/MAR, although they retain a consecutive numbering system. Individual parks may also disseminate information through their own report series.