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A Bridge to the Past EarthCache

Hidden : 01/12/2007
2 out of 5
3 out of 5

Size: Size:   not chosen (not chosen)

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Geocache Description:

This Earthcache is located within a very small section of The South Cumberland Recreation Area. The South Cumberland Recreation Area. the South Cumberland State Park Natural Area. South Cumberland State Park is one of the newer Tennessee State Parks. The majority of their park lies atop the Cumberland Plateau and is made up of natural areas that are great for hiking.

Parking for this bridge is a cinch, only 300 feet away. Please do use caution climbing around the bridge in poor weather!

Creationg of a Natural Bridge:
A natural bridge is formed by erosion of rock through various forces. This includes water (both frozen and running) and wind. Bridges are also more easily formed in soluble (can be dissolved by water) rocks such as sandstone, limestone, and basalt.

The natural bridge is essentially a giant sinkhole partially eroded to form a large stone bridge. A wet weather spring located behind the bridge in a rock cave probably contributed to the erosion forming the arch. As water poured through the cracks and froze during the cold months, it made the rocks loose and fall out, leaving the bridge standing before you. The timetable for this paticular bridge is uncertain but one can only assume it took a few hundred thousand years.

To log this cache please send me the answers to these questions and post your photo:
1. Post a photo of you and your GPS under the bridge.
2. How thin is the thinest point on the bridge?
3. Where does the spring currently flow?
4. How long do "you" think it took to create this bridge?

Thanks for visiting this unusual place hidden in a beautiful section of Tennessee!

Additional Hints (No hints available.)