South Dakota is one of the best horseback riding areas in the country because of the large variety of terrain. You could saddle up on the prairie, head down a winding trail, or ride a rocky ridge. Almost every state and national park near Hill City and Rapid City has designated horse trails including Custer State park, Black Hills National Forest, Badlands National Park, and Bear Butte State Park. Regardless of your skill level, you'll be able to learn from experienced riders and ride a trained horse.
For those who are traveling with their own horse, there are also other horse hotels and camps near hill city where people can stable their horses, but the easiest way to ride is to take one of these guided tours with experienced professionals. While you're staying at the Lantern Inn, the closest and most popular horse riding experience is only seven miles away at Palmer Gulch.