 Neon Central Plains Experimental Range field site is located at the western edge of the Pawnee National Grasslands in northern Colorado. This site encompasses more than 64 square kilometers of moderately grazed shortgrass step. A 26 foot tall flux tower captures a full profile of atmospheric conditions including physical and chemical properties. Observational sampling of terrestrial organisms, DNA sequences, and pathogens are also collected here. The land is managed by the Agricultural Research Service under the U.S. Department of Agriculture. Grazing and soil erosion studies that began at CEPR in the 1930s are still underway.