Hyperspectral imaging of the Grand Canyon of the Yellowstone

The photo shows Todd Hoefen (USGS geophysicist) operating a HySpex™ imaging spectrometer to collect hyperspectral images of a section of the canyon wall at Grand Canyon of the Yellowstone in Yellowstone National Park. USGS is conducting hyperspectral imaging in Yellowstone National Park to improve our understanding of the geologic processes occurring in the park. These activities will help to understand mineral variations across the surface that indicate past hydrothermal activity, the current flow of hot water through the rock, and will be used to identify changes in geologic activity in the future.