

(Painting by Thomas Moran original is 7x12 feet!!)
Your SW Geology Guides: . . . . Tue, Feb 5, 9:37AM PST (-0800 GMT)
#1 – How old IS the oldest rock formation in the Grand Canyon? button
Your SW Geology Guides: . . . . Tue, Feb 5, 9:37AM PST (-0800 GMT)
#2 – What is the rock from 250 million years ago in the Canyon called and what is it made of ? button
Your SW Geology Guides: . . . . Tue, Feb 5, 9:37AM PST (-0800 GMT)
#3 – One million years ago a layer of rock was laid down that tells us something took place geologically – what is that rock and where would it have come from ? button
Your SW Geology Guides: . . . . Tue, Feb 5, 9:38AM PST (-0800 GMT)
#4 – What cut through these ancient rocks to form the Grand Canyon and when did it happen ? button
Your SW Geology Guides: . . . . Tue, Feb 5, 9:38AM PST (-0800 GMT)
#5 – What different geologic formations and events account for the rock types found in the canyon? button
Painting by Thomas Moran: . . . . Tue, Feb 5, 9:38AM PST (-0800 GMT)

Your SW Geology Guides: . . . . Tue, Feb 5, 9:39AM PST (-0800 GMT)
#6 – Something HUGE in geologic terms was taking place out in what is now California that caused the Colorado Plateau to lift up, tilt, and the rivers to start cutting more deeply into the stone. What was this HUGE geologic event ? button