Hyce, who works at the Colorado Railroad Museum in Golden (which is a heritage railroad with restored steam locomotives) got to drive on of them while visiting family in Bosnia

There are uncommon instances of revenue freight being hauled by steam such as during a recent dispute between different agencies in Germany or the Everett railroad in Pennsylvania apparently does have some revenue service despite primarily being a tourist railroad and has on occasion used steam to switch out it’s revenue customers

Or for a similar but entirely different example, the Iowa Traction Railroad uses almost exclusively century old electric locomotives all built in the 1910s and 1920s. You can see here one of their electric locomotives posing with a much newer locomotive: