Guide to the Natchez Trace Parkway by Tim Jackson

Author:Tim Jackson
Language: eng
Format: epub
ISBN: 9781634042826
Publisher: Menasha Ridge Press
Published: 2019-06-14T16:00:00+00:00

Milepost 12.1 Turpin Creek

NATURAL WONDERS

A picnic area is located alongside the road. The creek here isn’t as interesting as at other creekside picnic areas, but several tables and grills are available.

Milepost 12.4 Loess Bluff

NATURAL WONDERS

What at first appears to be a nondescript exposed hillside is actually a glimpse into a geological process that began during the Pleistocene epoch, 1 million years ago. Deposits of silt, or loess, (pronounced “Lois”) were blown here from the north during the last ice age. Thick loess deposits such as this are generally found in areas where there were glaciers. As glaciers melted in the summer months, finely ground water-borne sediment formed at the edges of the glaciers. In winter, when the water stopped flowing, the winter winds carried this fine sediment in huge dust storms. As the wind died down, the silt fell to the earth, creating deposits such as the one you see here. Loess deposits are frequently most extensive and thickest downwind from large river valleys (and the Mississippi River Valley certainly is one).

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