Denver to Lusk, SD to Rapid City

ggimlick wrote:
How is US 85 from Cheyenne up to Rapid City? Towing 28’ travel trailer.

As others have said, the road is fine, nothing out of the ordinary as to condition. It is, however, very lonely and open drive, with no cell service to speak of except in the very few actual towns. Lots of ranch/grazing land along the route, coming out of Cheyenne to Torrington, and on up through Lusk to Newcastle. Fuel in Torrington and Lingle, fuel in Lusk, and fuel in Edgemont (if you go east) or Newcastle if you continue north. Lingle up to Newcastle is generally flat/rolling countryside like from Cheyenne to Torrington; if you take US 18 to Edgemont, there's a goodly climb from the intersection with US 85 heading east, up to Edgemont. It's a pretty drive once you get to Edgemont and head on to Custer, if you're inclined to go that way.