A survey of the Mammalian fauna of the Huntington Reservoir Area in Huntington and Wells Counties was conducted from March 1, 1973 through February 28, 1974. Collected specimens were identified to species, catalogued, and made into study skins and/or skulls prior to deposition in the Ball State University Mammal Collection. Data were recorded on body measurements, weights, reproductive condition, and skull measurements. These data were compared to previous mammal investigations in Indiana.The study revealed the presence of 27 species of mammals on or near the Huntington Reservoir Study Area. Twenty-one species were Collected and/or examined by the author, and the additional six species were collected and/or observed by Reservoir personnel.