Ridgeline Nature Trail

Overview

A compact sampler of the South Unit’s badlands, the Ridgeline Nature Trail is a 0.6‑mile loop that most hikers finish in about 30 minutes. It’s signed as easy to moderate—short, but with moderate‑to‑steep grades and a few stair sections—so expect a little puff on the way up. Pets aren’t allowed on park trails.

What You’ll See

You’ll climb through stands of Rocky Mountain juniper to a grassy ridgeline with sweeping, nearly 360‑degree views and a well‑placed bench to soak it all in. This is a true interpretive trail: grab the brochure at the trailhead and follow 14 numbered stops that decode the landscape—plants like sage and prickly pear, wildlife sign (look for bison rubs on juniper trunks), and the story written in the rock layers.

Geology, Decoded

The badlands’ layered palette—grays, blues, blacks, and umbers—comes from millions of years of deposition and erosion. After the Rockies rose, rivers laid down sands, silts, and muds that became sandstone, siltstone, and mudstone. Volcanic ash settled into bluish‑gray bands that weathered into bentonite clay; black seams mark ancient carbon that became coal. Later, during the Pleistocene, continental ice redirected the Little Missouri River into a steeper course, letting it and its tributaries carve the fantastically broken topography you’re standing above. Watch for red‑capped knobs and ridges of hardened “scoria” (porcelanite), baked in place by burning coal beds—these tougher layers resist erosion and pop with color against the softer strata.

Trail Character

Despite the modest distance, the ridge undulates and twists, changing your perspective every few steps. It’s often a quiet walk with big payoff views—great when you want a sense of the park’s scale without committing half a day. Do supervise kids along the ridgetop where there are drop‑offs, and take your time on the stairs.

Best Time to Hike

This is hikeable most of the year. Summer can be hot and windy (triple‑digit heat isn’t unusual), so aim for cooler temperatures in spring and fall or plan around the day’s heat and gusts. The interpretive stops reward an unhurried pace any time conditions are reasonable.

Essentials & Etiquette

Pick up the trail guide at the start to get the most from the 14 stops. Keep noise low, observe wildlife from at least 25 yards, pack out all trash (including toilet paper), and yield to horseback riders where encountered. Bicycles and motorized equipment are not allowed on park trails.