Hard hiking trails in Missouri are serious half-day to full-day commitments. Long mileage, sustained climbing, and sometimes rocky or exposed terrain push these routes well past a casual outing in the Great Plains, Black Hills, and badlands.

Trail Compass currently indexes 2 hard-rated routes in Missouri, totalling roughly 16 trail miles. The average hard trail in this state is about 8.1 miles long, which is a useful starting point when you are sketching a weekend.

Across the Great Plains, Black Hills, and badlands, the most reliable hiking season is May through October; summer thunderstorms build fast and lightning is the primary objective hazard on exposed grassland. Shoulder-season visits can deliver beautiful empty trails but tilt the difficulty upward — short days, possible snow, and unstaffed entry stations all add friction.

Expect wildlife typical of the Great Plains, Black Hills, and badlands: pronghorn, bison herds inside protected reserves, prairie dogs, golden eagles, and rattlesnakes in the warmer months. The risk of a serious encounter is low, but the cost of getting it wrong is high — give animals space, store food correctly, and never approach a young animal even if no parent is visible.

How to use this page: every trail listed below links through to a full guide with distance, elevation gain, route type, best-season notes, wildlife expectations, parking guidance, and nearby attractions. Combine this filter with the Trail Compass park pages to plan a trip around a specific Missouri destination.

All hard trails in Missouri

TrailParkLengthElevationRoute
Gateway Arch Wilderness Loop Gateway Arch National Park 9.71 mi 1,779 ft Loop
Gateway Arch Saddle Trail Gateway Arch National Park 6.56 mi 1,709 ft Out & Back

Other difficulty tiers in Missouri

Easy trails in Missouri Moderate trails in Missouri