Best natural monuments in LaSalle County, Illinois, are primarily found within its state parks, which feature unique geological formations and diverse ecosystems. The region is characterized by sandstone canyons carved by glacial meltwater, offering a landscape distinct from much of Illinois. These natural areas provide opportunities to explore varied terrain, from river bluffs to forested trails. The area's natural monuments also hold historical significance, with sites linked to Native American history.
Last updated: May 11, 2026
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Popular around Lasalle County
A beautiful view, but the number of locks is still very limited today
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Wildcat Canyon is one of the most impressive and popular canyons in Starved Rock State Park. It is known for: • The highest waterfall in the park: approximately 70 feet (21 meters) high • The deepest canyon: up to 90 feet (27 meters) deep • Two overlooks at the top of the canyon
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According to local legend, the Ottawa leader Pontiac was assassinated by a Peoria warrior in 1769. • In retaliation, the Ottawa and Potawatomi besieged a group of Illiniwek (Illinois Confederacy) entrenched on the rock. • The besieged starved to death, and thus the rock became known as "Starved Rock."
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Lake Falls is the uppermost waterfall in Matthiessen State Park and is fed by Lake Matthiessen, which lies just above the falls. It has a height of about 25 feet.
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Lover's Leap Overlook lies at the loop of the same name and offers nice views of the Illinois River. Furthermore, you can see 'Lover's Leap' that relates to two lovers from different tribes who couldn't be a couple and therefore decided to jump off one of the cliffs together.
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If you arrived at the Visitor Center of Starved Rock State Park, French Canyon will be the closest canyon and therefore the shortest hike you can do. Thanks to its shortness, it's the perfect walk for families and inexperienced hikers. But be aware, that you'll be climbing a lot of stairs.
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LaSalle County is renowned for its dramatic sandstone canyons, carved by glacial meltwater over thousands of years. These canyons, particularly prominent in Starved Rock and Matthiessen State Parks, feature vertical walls, often covered in moss, and come alive with seasonal waterfalls. You'll also find interesting rock formations like Giant's Bathtub and Devil's Paintbox, and striking limestone topography at places like Buffalo Rock.
Yes, several natural monuments in LaSalle County are suitable for families. French Canyon in Starved Rock State Park is particularly family-friendly due to its shorter, accessible hike, though it does involve stairs. Matthiessen State Park also offers a less crowded experience with beautiful canyons that families can explore. Many trails are considered easy, such as the Ottawa Canyon Trail or the Saint Louis Canyon Trail, which you can find more about in the Easy hikes in LaSalle County guide.
The canyons and waterfalls are particularly spectacular during early spring rains and snowmelt when water levels are high, creating impressive cascades. Fall offers vibrant foliage, making it another beautiful time to visit. In winter, the frozen waterfalls at Starved Rock, such as Wildcat, LaSalle, Ottawa, and Tonti, attract photographers and ice climbers.
LaSalle County offers extensive hiking opportunities. Starved Rock State Park alone boasts over 13 miles of trails winding through and between canyons, along bluff tops with expansive views of the Illinois River. Matthiessen State Park features five miles of marked hiking trails, in addition to mountain biking and equestrian trails. For specific routes, you can explore guides like Waterfall hikes in LaSalle County or Easy hikes in LaSalle County.
While specific dog policies can vary, generally, dogs are permitted on trails in Illinois State Parks like Starved Rock and Matthiessen, provided they are on a leash. However, some specific areas or buildings might have restrictions. It's always best to check the official park websites for the most current regulations before your visit. For Starved Rock, you can find more information at utica-il.gov.
Yes, several sites hold historical significance. Starved Rock is famous for a Native American legend from the late 18th century involving the Illiniwek tribe. Additionally, Buffalo Rock State Park is home to 'Effigy Tumuli,' unique earth art sculptures depicting five animals native to the Illinois River area, paying tribute to Native American burial grounds.
While Starved Rock is very popular, Matthiessen State Park, adjacent to Starved Rock, offers similarly stunning canyon features often with fewer crowds, making it a great alternative. Buffalo Rock State Park is a smaller but charming natural monument, unique for its American bison herd and the 'Effigy Tumuli' earth art, providing a different experience from the canyons.
Most state parks, including Starved Rock and Matthiessen, offer designated parking lots. During peak seasons or holidays, these lots can fill up quickly, especially at Starved Rock. Arriving early in the day is recommended to secure a spot. Buffalo Rock State Park also has parking facilities for visitors.
Absolutely. Lover's Leap Overlook provides expansive views of the Illinois River and is part of a scenic loop trail. From the top of Starved Rock itself, you can also get a great view of the Illinois River dam. Buffalo Rock State Park, situated on a bluff, also offers scenic views high above the river from its River Bluff Trail.
La Salle Canyon Waterfall is one of the most popular and scenic canyons in Starved Rock State Park. The hike involves passing multiple wooden bridges and walkways, leading you to the impressive waterfall at its mouth. It's a unique experience, but be prepared for crowds, especially during peak times.
Yes, winter offers a unique experience. The frozen waterfalls in canyons like Wildcat, LaSalle, Ottawa, and Tonti at Starved Rock State Park become popular for ice climbing and photography. Matthiessen State Park also offers cross-country skiing trails during the winter months.
The diverse ecosystems support a variety of wildlife. You might spot white-tailed deer and wild turkeys in Starved Rock State Park. Matthiessen State Park is home to frogs, toads, salamanders, and cliff swallows. Uniquely, Buffalo Rock State Park maintains a protected grazing area for American bison, offering a chance to see these magnificent animals.


Find even more amazing natural monuments in LaSalle County by checking out the top Highlights region by region:
Extend your search for the best caves by checking out these guides of the top ones in LaSalle County: