All Nature Sites in Ottawa
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- Acquired in 1970 by the LaSalle County Conservation District, the 333-acre Catlin Park (open May-October) is a mix of bluff land oak-hickory forest, chinquapin oak savanna, maple-basswood dominated steep ravines, and tallgrass prairie habitats. Cottonwood, sycamore, and hackberry dominate the bottomland forests. Ash, basswood, and black cherry dot the landscape. These trees produce a cornucopia of nuts and fruits; provide Read more...
- Located at the Starved Rock Lock & Dam, the Illinois Waterway Visitors Center is owned and operated by the US Army Corps of Engineers. The Corps maintains the lock and dam system along the entire Illinois Waterway from Lake Michigan to Grafton, IL where the Illinois River empties into the Mississippi River. The water system conducts river traffic along 333 Read more...