Environmental Assessment for Civil War Battlefield trail 2.04mb (pdf) Pecos National Historical Park proposes to construct a foot trail within the Pigeon's Ranch Sub-Unit of the Glorieta Battlefield Unit of Pecos National Historical Park. The trail would provide access to viewing areas of the battlefield site along Arrowhead Ridge and on Windmill Hill, and associated signage would provide interpretive information on the 1862 Battle of Glorieta Pass. The proposed project would involve constructing approximately 2.25 miles of trail located on lands managed by the National Park Service. By constructing this permanent trail, Pecos National Historical Park will fulfill its mandate to preserve, protect and interpret the battlefield.