University of Notre Dame Environmental Research Center (UNDERC) is a core terrestrial site in NEON's Great Lakes Domain 5. Straddling the border between Northern Wisconsin and Michigan's Upper Peninsula, the UNDERC property comprises approximately 7500 acres and is maintained as an environmental education and research facility. UNDERC also has 30 lakes comprising 1350 acres, including Crampton Lake, a NEON aquatics site. The flux/meteorological tower at this site is 127ft with 6 measurement levels. The tower top extends above the vegetation canopy to allow sensors mounted at the top and along the tower to capture the full profile of atmospheric conditions from the top of the vegetation canopy to the ground. The tower collects physical and chemical properties of atmosphere-related processes, such as humidity, wind, and net ecosystem gas exchange. Precipitation data are collected by a tipping bucket at the top of the tower, a Double Fence Intercomparison Reference (DFIR) near the tower, and a series of throughfalls located in the soil array. UNDERC site includes airborne remote sensing surveys, automated instrument measurements and observational field sampling.There are also multiple plots for soil sensors and sampling and organismal sampling including birds,mammals, ticks and mosquitoes.