This study focuses on modern-day attempts to preserve the site where Union volunteers from Colorado defeated a Confederate army from Texas at the 1862 Battle of Glorieta Pass to curtail Confederate expansion westward. When construction workers in 1987 accidently uncovered remains of the war dead, a second battle of Glorieta Pass ensued. Texas and New Mexico officials quarreled over jurisdiction of the war casualties. Eventually Congress authorized the National Park Service to expand the Pecos National Park through purchase and donation of land to include the battlesite. Sources include local records, newspapers, federal and state documents, and interviews with preservation participants.