Autumn is in full swing with gorgeous days and cool nights, and my thoughts turn to where they always do—wanting to hit the trail during this perfect time of year. This started me thinking of my "epic summer journey" this year where I visited so many …
Glen Canyon Rock Layers
Glen Canyon area rocks were laid down during the Mesozoic Era, a period of time that followed the interval when all Grand Canyon rock units were created. The Mesozoic Era lasted about 170 million years, from 251 to 65 million years ago. Some …