In 2010 and 2011, Flint Geothermal commissioned CIRES from the University of Colorado to attempt to detect "blind" or buried geothermal systems using remote sensing. CIRES utilized thermal infrared bands from ASTER and LANDSAT satellite imagery to detect areas of warm ground in parts of Colorado. During the summers of 2011 and 2012, geologists from Geothermal Development Associates of Reno Nevada performed "ground truthing" or site assessments on a number of these thermal targets, as well as known geothermal systems at or near the targets. This dataset consists of a number of memos from CIRES and GDA describing the thermal targets and fieldwork performed at them.