| Rock Springs Walking Tour | |
| Rock Springs, African American churches of | Brigida R. (Brie) Blasi |
| Rock Springs, Wyoming | Chris Propst |
| Rocky Mountain Herbarium | |
| Rocky Mountain Oilfield Testing Center at Teapot Dome Oil Field | Carolynne Harris |
| Rocky Ridge | |
| Rocky Ridge | WyoHistory.org |
| Rogers, Clifford | Wyoming State Archives |
| Roncalio, Teno, biographical essay | Joan Barron |
| Roosevelt, Theodore 1903 Horseback Travel Route | |
| Roosevelt, Theodore visits Wyoming in 1903 Visit | Rebecca Hein |
| Roripaugh, Robert, Wyoming Poet Laureate 1995-2002 | John D. Nesbitt |
| Rosa, Michael Angel | Paul Krza |
| Ross, Nellie | Wyoming State Archives |
| Ross, Nellie Tayloe and 1928 presidential campaign | Rebecca Hein |
| Ross, Nellie Tayloe, biographical essay | Tom Rea |
| Ross, William | Wyoming State Archives |
| Rural electrification, Wyoming history of | Kerry Drake |
| Russin, Robert, sculptor | Maria Wimmer |
| Ryan Hill, Oregon Trail site of | WyoHistory.org |
| Ryan Park Campground | |
| Ryan, John “Posey,” early soldier, settler, murderer and hotelkeeper | Douglas R. Cubbison |
