Iowa – Geology and places to visit

Iowa is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north.

Iowa’s bedrock geology generally decreases in age from east to west. In northwest Iowa, Cretaceous bedrock can be 74 million years old; in eastern Iowa Cambrian bedrock dates to c. 500 million years ago.

Iowa is generally not flat; most of the state consists of rolling hills. Iowa can be divided into eight landforms based on glaciation, soils, topography, and river drainage.  Loess hills lie along the western border of the state, some of which are several hundred feet thick.  Northeast Iowa along the Upper Mississippi River is part of the Driftless Area, consisting of steep hills and valleys which appear almost mountainous.

To the east lies Clear Lake. Man-made lakes include Lake Odessa,  Saylorville Lake, Lake Red Rock, Coralville Lake, Lake MacBride, and Rathbun Lake. Before European settlement, 4 to 6 million acres of the state was covered with wetlands, about 95% of these wetlands have been drained,

Desoto Lake at Desoto National State Park

Places to visit:

Empty Road Surrounded With Green Trees
FORT DEFIANCE STATE PARK
Clive Greenbelt Trail: Iowa Tourism Map, Travel Guide, Things to Do: Travel  Iowa

THE CLIVE GREENBELT TRAIL

Hartman Reserve Nature Center, October 2013.jpg

THE HARTMANT NATURE PRESERVE



Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s