Enchanted Rock Location: Enchanted Rock State Park, between Fredericksburg and Llano TX Year: 1994 Merckslides catalogue number: 06-17239 Comments: The beautiful pink granite facing buildings in the DC area comes from the 800 million year old Town Mountain granite intrusions of the Llano Uplift. Enchanted rock is a series of big spherical intrusions that have been exposed by erosion, like the top of a huge bald head. It displays spheroidal weathering and exfoliation surfaces ona grand scale.

Enchanted Rock Location: Enchanted Rock State Park, between Fredericksburg and Llano TX Year: 1994 Merckslides catalogue number: 06-17236 Comments:

Enchanted Rock vernal pool Location: Enchanted Rock State Park, between Fredericksburg and Llano TX Year: 1994 Merckslides catalogue number: 06-17247 Comments: Vernal pools form when rainwater pools up on a granite surface. The granite is weathered byt he carbonic acid in the water, deepening the depression in which the water gathered and forming soil in which plants grow. The plants add their organic remains to the soil, forming little oases of vegetation.

Stock or satelite rock Location: Enchanted Rock State Park, between Fredericksburg and Llano TX Year: 1994 Merckslides catalogue number: 06-17235 Comments: A stock is a relatively small upward protrusion of a pluton. This outlier of Enchanted Rock has been unroofed by erosion.

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