This dataset contains meteorological, soil and vegetation data collected in 1994 and 1995 from a site adjacent to the Sag River (Slope Mountain) Alaska Department of Transportation Maintenance Camp at mile 306 on the Dalton Highway (pipeline Haul Road). This is 109 miles from the Deadhorse end of the Highway or approximately 20 miles north of Toolik Camp, 30 miles south of Happy Valley, and 6 miles south of Pump Station 3 (68 degrees 46 minutes 47 seconds North, 148 degrees 52 minutes 52 seconds West, at 500 m elevation). Parameters collected include: air temperature, relative humidity, wind speed and direction, precipitation, net and shortwave radiation, soil moisture, subsurface temperature, snowpack temperature and depth, subsurface heat flux, slope, aspect, and vegetation.