We enjoyed riding our mountain bikes along this path, which covers diverse sections of Casper and is also enjoyed by many local walkers and runners. It took us more than two hours to ride the trail end to end (we did get lost and backtracked a couple times). Probably a good idea to keep your app open so you don’t ride over the bridge to the other side and end up in the wrong place.

We went for an early morning ride on this pretty bike path that winds along the wide and beautiful North Platte. The path has a few gaps but is easy to find with the Rails to Trails app. It was nice to see the smiling faces of locals, who waved as we passed. No masks, which was fine. This trail, which is EAST of Casper (write up on site had this wrong), will probably be extended as Douglas expands. New houses are going up along the north side of the path.

We rode this trail from Toulon to Princeville today. It was great! The path was very good. It is mostly shaded. Excellent. We stopped in Wyoming on our way back for lunch. Ate at 111 Coffee Shop. Don’t be fooled, this is NOT just a coffee shop. The lunch was delicious. And it is decorated all with bikes! Perfect for us bikers. And check out the bathroom. Cute!!! Can’t wait to do more of the route from Princeville going south.

In July 2020 I walked three miles of the trail from the west end to Walsh Avenue. This goes through the downtown area of Casper. East of there it parallels Highway 26 (Yellowstone Highway) and, a bit farther away to the south, I-25 towards Glenrock, out to the Hat 6 road.
The entire section I walked is concrete. The two westernmost blocks have been obliterated to make way for a large building under construction as I write this. The building stretches right across the old C&NW right-of-way. West end access is now at Ash Street.
The trail has no sanitary facilities, but the first mile and a half, through the downtown area, has plenty of places where one can stop and use facilities, including the Natrona County Library about half a mile from the west end.
For those interested in the old railroad "flavor" that surrounds some trails, you'll be sorely disappointed here. Nothing much still exists from the time the tracks were here. All the railroad structures are gone, and there's little evidence of the industries the railroad used to serve, either.
But it is a pleasant walk, although after the first mile and a half or so, there's not a lot of shade (though there are maps and benches for resting, periodically) further east.
Some liberties were taken in routing the trail off of, but nearby, the old railroad grade. At Beverly Street crossing, a very nicely land- and hard-scaped underpass has been built for the trail, where the rail line crossed at grade. A bit further east the trail parallels the grade at a couple points, with the grade being very obvious by it raised flat roadbed to the left (as you walk eastward) of the trail.

This is the best trail I have ever ridden!

It's pretty much just a paved trail from Glenrock to the school just out of town. I skated it and the only other users were kids on their way to school. Not a destination trail, but if you're passing through or live here and want some exercise it's an alright stop. The petrified wood is cool, and there's water and bathrooms in the park alongside the trail.

The trail is 10 miles of all-concrete, alternating on both sides of the North Platte River, from Riverbend Road in the (south)west to the North Casper Sports Complex in the (north)east. It mostly follows the river, with an extension loop [which is only shown in Google Maps (yet)] around the Three Crowns Golf Course on the south bank of the river, and it is a fantastically well-kept trail, even with bike repair stations on the way.
For convenience of parking, and because we wanted to see the grounds and the museum, we started our ride at Fort Caspar, and then rode towars the north-east, I alll the way up to the end and back, whereas my wife turned around sooner. Both of us thoroughly enjoeyd the ride.