If you are looking for a place to car camp, then you may enjoy this park.
Here is a short video of my short walk at Illini State Park.
The Illinois River Valley
as it looks today is the result of continual and often dramatic natural changes
to the landscape.
Some of the
processes that shaped this river and its valley are, literally, as old as the
hills. Sandstone and limestone bluffs recall an era, millions of years past,
when an ancient sea overspread this region. The Mississippi River once flowed
through this valley, before glaciers shifted its course to the west. South of
Hennepin, the Illinois River follows the Mississippi's ancient channel. A more
recent glacial event sculpted the upper reaches of the Illinois River.
Seventeen thousand years ago, glacial meltwaters burst through a rock-earth dam
holding back a massive lake, unleashing the Kankakee Torrent, which carved the
river valley all the way to Hennepin.
As the glaciers
retreated, lichens and plants reinhabited the barren landscape, many of which
sprouted from seeds left behind in the glacial deposits. In the 12,000 years
since then, rich topsoils accumulated, and complex and varied communities of
plants and animals-from lush bottomland hardwood forests and riparian
floodplains to tallgrass prairies and woodland spring seeps-have established and
flourished here.
The Illinois River
Road sites below to enable you to experience how geological transformations
have shaped the Illinois River Valley and how, since the end of the Ice Age,
dynamic natural communities have become established in the Illinois River
Valley.
…
Located across the Illinois River from
the town of Marseilles, the 510-acre Illini State Park lies along the northern
edge of the Great Falls of the river, where a drop in streambed gradient
creates beautiful roaring rapids. The park itself sits atop an old glacial
moraine (elongated ridge-type hill bulldozedup by an advancing Pleistocene
glacier) and features a dense hardwood forest of oaks and hickories on the
ridge tops, sugar maple, black walnut, and white ash on the slopes, and silver
maple and cottonwood in the bottoms, providing diverse habitat for birds and
birders. Hikers (and cross country skiers in winter) can take the parks
Marasottawa Trail which loops from the Sycamore Grove Shelter on the east end
of the park up to the Mallard Bay Shelter and Boat Launch on the east end.
LaSalle County birders highlight this trail as one of the best sites in the
county for viewing migrating vireos, warblers, thrushes, and other songbirds in
fall.
The
above information is from http://www.illinoisriverroad.org/byway_story_geology.cfm
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