Rankin Ridge Fire Tower

Overview

Rankin Ridge tops out at the highest point in the park, and the historic steel fire lookout marks the summit. It’s a quick payoff hike with big panoramas across the eastern Black Hills—and on crystalline days you can spot the outline of the Badlands and Buffalo Gap National Grassland on the horizon.

The Hike

This is a ~1-mile loop with about 250 feet of gain, typically 30–45 minutes. Most hikers go clockwise: climb the narrower, shaded trail with stone steps, then descend the wider gravel/dirt service road for an easier finish. Benches dot the route, and an interpretive self-guided tour in the NPS app highlights 14 stops along the way. The best vistas come along the ridge just before and around the tower.

The Fire Tower

The Rankin Ridge Fire Lookout is a mid‑century, ~53‑foot steel tower (built in 1956) designed for live‑in lookouts. It’s closed to climbing, but it still makes a characterful summit marker and a great place to pause for views.

Wildlife & Safety

Expect signs of bison (beds, droppings) and occasional sightings; give them a very wide berth. Prairie dogs are often near the road turnoff. This high point is exposed—watch thunderstorms and get off the ridge if lightning threatens. Steps can be slick in wet or winter conditions, and there’s some poison ivy at trail edges—stay centered on the path.

Logistics

A short signed spur off SD‑87 leads to a small gravel lot at the trailhead. There’s no water or restrooms here, and pets and bikes aren’t permitted on the trail. Cell service is spotty to none—download the NPS app guide before you go. The loop is open year‑round; summer is the easiest season.

Best Time to Visit

For cooler temps, softer light, and fewer people, aim for early morning or late afternoon/early evening. Midday—especially late morning into early afternoon—sees more activity. Clear post‑frontal days offer the best long‑range views; avoid the ridge during active thunderstorms.