The grazing lands project for ColoradoView has aimed to fill gaps in the availability of spatial data on grazing lands in Colorado. Initial efforts to find any accurate, open source and comprehensive spatial data on grazing lands in Colorado proved fruitless. The main objective of this project was to utilize satellite imagery (Landsat and MODIS) to map grazing lands and grazing intensity in parts of Eastern Colorado. Interns aimed at calibrating MODIS and Landsat data with field data provided by the USDA. The USDA field data is separated into 3 different grazing plots with each respectively representing light, medium and heavy grazing intensities. In order to utilize this data, interns attempted to find and download corresponding data from MODIS that would be comparable to the ground data. However, MODIS data is at such a rough scale (250m – 1000m) that there is plenty of work to be done before MODIS satellite data can be compared to the ground data. This included transforming the MODIS NDVI data (250m) to fPAR using a formula provided by Dr. Gonzalo Irisarri, a USDA researcher.Interns: Eric Rounds, Riley RossReport: Grazing Lands