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The main trail is over 12 miles long. Bikes and horses are also allowed. Expect to see rolling prairie full of grass and sagebrush without a tree in sight. Grazing has been allowed again, so there may be cows.
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One of the highest points in the city for a great view of Gillette north of the interstate. The park is open long enough to allow day or night viewing. Be careful on Goldenrod Avenue when it is icy or there is heavy snow. The road can be steep.
Enjoy an ice-hockey game at the Campbell County Ice Arena. The Wild play in the North American Tier III hockey league.
Museum of the Powder River Basin
The Rockpile was a landmark for cowboys and now it's a landmark for the museum next to. This quiet museum has a mix of objects and information about homesteading, ranching, farming, coal mining, ancient geology, and American Indians. There are a few hands on displays with old items for children, but a few are still interesting for adults. A back room in the main building is used for rotating exhibits and the empty space there in front of the covered wagons is for events and talks. Don't forget to walk outside to the big white building with a garage door. There are more exhibits inside and outside on the South side of the building.
The Frontier Auto Museum hosts a one-day small classic car show in front of their museum. As a bonus their museum is free to visit that day. If you love free car show, it is worth a look.
Regional and local breweries show up and offer their beer right on the street with live music playing in the background. You can hold your craft beer in one hand and play oversized Jenga or cornhole with the other because drinking is allowed in public for the outdoor event. Or use that free hand to get some food from local vendors.
Philatelic (stamps, postal history, and postal related) fans can see the old Gillette Post Office in the downtown area. You can also check out the local brewery inside.