The Glorieta Battlefield, located on the Santa Fe Trail east of Santa Fe, is the site of the westernmost major battle in the Civil War.
In 1990, the United States Congress' Civil War Sites Advisory Commission gave the Glorieta Battlefield a preservation priority rating of I (Class A), the highest possible rating. Priority I sites are those identified as the most important and most threatened Civil War battlefields. The Class A designation was given to sites having a decisive influence on a campaign and a direct impact on the course of the war.
In addition to being a National Park unit, Glorieta is on the National Register of Historic Places and the New Mexico State Register of Cultural Properties, and is a National Historic Landmark.