unconsolidated area deposits; a complex tectonic and erosion records; and Pliocene to Holocene volcanic deposits. The Colorado River demonstrated the course through canyon about six million in years past, and likely developed from pre-existing drainages to the current course. Geologic processes, including erosion of tributaries and slopes, and active tectonics still profile the canyon now. The geologic record in fantastic Canyon is an important scientific chronicle and it is largely in charge of its inspirational landscapes. Continua a leggere →