Featured
Destination: Iowa River Greenbelt
Natural
Features
Three geological
landforms converge in this region: the Wisconsin Surface, the
Iowa Drift Plain and the Southern Iowa Drift Plain. The Iowa River
in Hardin County is influenced by all three landform regions.
The character of the river ranges from a low, rock-lined channel
near Alden to a narrow gorge and bluffs at Iowa Falls. Between
Iowa Falls and Steamboat Rock, the bluffs recede from the river
and the valley widens, deepens and is distinguished by terraces
along the sides of the valley. From about Steamboat Rock to Eldora,
the river flows along the edge of the Bemis End Moraine, where
the receding glacier dumped much of its rocky load. Here the valley
is gorge-like, dramatically deep and narrow.
Dog-tooth
Violet and Dutchman's Breeches,
photo by Carl Kurtz
The Iowa River Greenbelt
is home to a variety of plants and animals in aquatic, grassland,
savanna/shrub, riparian and woodland habitats. Some sections contain
rare and endangered plant and animal species, including the northern
monkshood plant, bald eagles and three species of freshwater mussels.
The area is also home to the only sharp-shinned hawk nest found
in Iowa for many decades. The black-billed cuckoo, wood thrush,
bobolink, and even cerulean warbler and pileated woodpecker are
found within the various habitats. Meanwhile, chorus frogs and
cricket frogs are often heard in the area wetlands.
Lower
Pine Lake, photo by Carl Kurtz
Some parts of the
Greenbelt, especially the deepest sections, contain small pockets
of plants and trees like those located in the "driftless"
area of northeast Iowa, including white pine, paper birch, yellow
birch and other plants. The trees located in the Greenbelt provide
brilliant displays of color when the leaves change in the fall.
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