Sunday, June 18, 2017

Walk: the Ice Age Trail

Upon moving to Wisconsin, I sought out history books to help explain the cultural background of the state; to understand where people were coming from. As it happens, the history of Wisconsin begins with the Ice Age. At least, the Ice Age is mentioned in Chapter 1 in each of two history books.

The first is Wisconsin: The Story of the Badger State, by Norman K. Risjord. The second is Wisconsin: A History, by Robert C. Nesbit (2nd edition, revised and updated by William F. Thompson).

Risjord describes the Ice Age dramatically: “The story of modern Wisconsin begins with the ice, a moving mountain of ice that scoured the countryside and rearranged the hills and valleys. It is called the Wisconsin glacier because of the profound impact it had on the Badger State, and it was the last of four glaciers that had overrrun North America in the last million years” (1).

Nesbit / Thompson puts it more soberly: “As the glaciers retreated northward for the last time around 7000 B.C., the character of the land and ecology changed. The land warped upward, relieved of the tremendous weight of the glaciers, changing lake levels, contours, and drainage patterns. As the climate warmed, spruce forests were replaced by pines” (10).

The Wisconsin Geological and Natural History Survey Ice Age geology web page has a wonderful image that shows the extent of the last glaciation (the Laurentide Ice Sheet) that occurred over Wisconsin:


They state: “The Laurentide Ice Sheet and the large volume of meltwater flowing from it greatly altered the landscape of Wisconsin. As a result, the landscape of the area glaciated during the last part of the Wisconsin Glaciation is notably different than that of areas glaciated earlier in the Ice Age (where erosion has destroyed most earlier glacial landforms) and areas that were never glaciated. For example, the outermost limit of the last glacier is marked by a conspicuous ridge of glacially deposited debris. The many lakes and wetlands and the irregular landscape that characterize so many areas of eastern and northern Wisconsin are also a direct result of the last glacier.”

It turns out that I’ve been walking segments of the Ice Age Trail in my hikes around Devil’s Lake State Park. The IAT roughly traces the extent of the last glaciation. Curious to experience more of natural Wisconsin, I looked up a nearby trail segment of the IAT. The nearest one appeared to the Table Bluff Segment, near Cross Plains.

It was a hike that I took this morning, when the weather was partly cloudy, breezy, and temperatures were in the 70s. Getting there took about as half as long as the drive to Devil’s Lake. Also, parking is free, but there is no ranger station nor any facilities of any kind, except for signposts, and the occasional bench. While hiking boots weren’t strictly necessary, sturdy shoes are a must.

Unlike Devil’s Lake State Park's rocky trails leading towards cliffs, the Table Bluff Segment trail is through a mixture of open prairie and woods. The trail itself is kind of hard to photograph. 

 The trailhead
 

 Looking back at the parking lot

Into the woods

Onto the prairie

At the other end of the trail


Even photographing the signs is awkward, due to the tall grass

 
 See? I told you it was 2.5 miles!

While there are no scenic vistas of water, there is a charm to the rolling prairie and occasional grouping of trees. There is only the sound of birds, insects, and the wind through the trees, until you get within a few hundred feet of U.S. Highway 14. It brought back the pleasant memories of traipsing through a similar landscape, looking for baby deer.

The Table Segment is 2.5 miles one-way, so I walked five miles in about two hours. There is no loop; you reach the end (or any stopping point), and turn around. The trail is only one “lane” wide. If you are by yourself, then step aside to let all larger parties through.

Overall, a good experience. Reading about Wisconsin history and geography, and experiencing its ecology and geography is fun.

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