Aerosols were collected from Denali National Park and Preserve from 2 March 1988 to 29 May 2006 using the Interagency Monitoring of PROtected Visual Environments (IMPROVE) air quality network. Data included aerosol concentration measurements (2.5 um and smaller) and derived quantities totaling 52 different parameters. Of the 52 different parameters, 27 were analyzed, HYbrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model back trajectories were calculated, and sources were identified using the EPA-CMBv8.2 model. The seasonality of combinations of the aerosol sets correlates to previously identified sources of aerosols in Alaska such as Arctic Haze, Asian Dust, Alaskan forest fires, sea spray, and aerosols produced by burning of wood or furnaces during the winter season.