This trip begins by turning off US-24 at mile #45 (The Forks), two miles west of the state line. After traveling northwest for five miles on the Hay Creek Road (C-264), you come to a junction on the top of Norgrain Hill. Here you can turn east to Belle Fourche, South Dakota. At this junction, you can see Schoolmarm Butte, Table Mountain, and Little Table to the southwest.
Continue west on the Mona Road (C-222) and after crossing Oak Creek (well named) a couple of times, the road swings northwest to a junction at Four Corners (10 miles from US-24). Here you can take the Oak Creek Road (C-81) south to W-24 at mile #42. The road west goes to The Notch and then south to W-24 at mile #36.
Stay to the northwest on C-222 and after one mile you cross Alum Creek. One mile further, you cross Pine Creek to a junction. Here a Curren Road (C-248) turns west and then south, joining the road going by The Notch to W-24.
Continue northwest on C-222 for two miles and you cross Deep Creek and a nice little canyon. From this area you can see the tree lined Belle Fourche River to the north. After crossing Deep Creek, the road makes a large zig-zag and crosses Horse Creek. Here the road turns back to the west and travels across the rolling hills, past stands of pine and oak trees.
Six miles after crossing Horse Creek, the road turns south to Mona (25 miles from US-24) and away from Windy Point (a rock outcropping to the north). From here you can see Branaman Mountain to the northwest. To the near south is Blue Ridge and to the far south are the Bear Lodge Mountains.
After leaving Mona, the road drops down into part of Buffalo Basin and crosses Beaver Creek (seven miles). (On a hot day, Beaver Creek is a great place to let the dog cool off and lap up some water.) The road then follows along above the Belle Fourche River for a bit, and you can see Missouri Buttes and Devils Tower off to the southwest. Six miles south of Beaver Creek, you hit US-24 at mile #23, just west of Alva.