Prints that stem from early western surveys conducted by the United States War Department and the United States Department of the Interior are important components of the works on paper collection. These prints were typically based on field sketches by artists who accompanied the expeditions. They provide unique views of the western landscape, Indian life, natural history, ancient Spanish culture, and life in nineteenth-century American frontier communities. The Frémont Expeditions (1842–44), Emory Expedition (1846–47), Abert Expedition (1846–47), and Simpson Expedition (1849) are among the sources of western survey prints collected by the ACMAA.