Crystal River and Cottonwood trees on Colorado Highway 133 near Redstone
View of Fall colors on Highway 133 heading towards McClure Pass.
View of Valley and Aspens on County Road 3C near the Yule Marble Quarry.
Island Lake in Marble, Colorado
Mt. Sopris viewed from Colorado Highway 133 north of Carbondale, Co. This was formed by an intrusion of igneous rock (quartz monzonite) during the Tertiary period (25-50 Ma) with subsequent erosion of overlying sedimentary rock and modified by glacial action.
Yule Marble Quarry above Marble, CO. This was the source of white marble in the Lincoln Memorial and Tomb of the Unknown Soldier.
Rock slab showing transition between white marble and limestone. White marble in the Yule quarry formed by metamorphism of Leadville limestone in an area domed up and heated by a Tertiary igneous intrusion.
Peaks of Maroon Formation (red shale) and aspen trees along the edge of the Maroon Amphitheater Area.
The Maroon Bells in the Aspen area above Maroon Lake are formed by Maroon Peak and North Maroon Peak over 14,000 feet high. They are topped by layers of oxidized hematite-rich shale that formed during the Permian and Pennsylvanian periods (252-320 Ma) that was raised during the collision of Africa and North America to form Pangea and tilted during the Laramide orogeny (72-40 Ma).
