Parks & Campgrounds in St. Louis County, Illinois
6 parks across St. Louis County.
6 park pins
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Guides & rankings
From the OutsideAtlas Blog
Photo: Sergei AkulichState Rankings
The 10 Longest Hiking Trails in Illinois, Ranked
Illinois's longest mapped hiking trails, ranked by distance with notes on what makes each route worth the commitment.
Photo: Holly MandarichState Rankings
Illinois's 10 Most Punishing Trails by Elevation Gain
Steep is hard. These are the ten Illinois trails with the most total elevation gain — quad-burners earned by hard climbing.
Photo: Joshua EarleState Rankings
The Best Beginner-Friendly Hikes in Illinois
Ten gentle, well-marked Illinois trails perfect for first-time hikers, families, or recovery days.
Photo: Sergei AkulichState Rankings
The 10 Most Challenging Hikes in Illinois
Illinois's ten hardest hikes — expert difficulty, big mileage, or serious exposure. Reserved for experienced hikers.
Photo: Joshua EarleParks & Travel
The Best National Parks & Recreation Areas in Illinois
Federal parks and recreation areas in Illinois ranked by what they actually offer hikers and campers, not just popularity.
Photo: Sergei AkulichState Rankings
Best Waterfall Hikes in Illinois: 10 Trails to See Falls Up Close
Illinois's best hikes to named waterfalls — from short family-friendly viewpoints to all-day cascade chasing.