Question: Since 2015 Rohrmoos-Untertal is a part of a former mining town that is now a popular what?
Sentence (from "Salina, Colorado"): The mining camp was originally accessible only by horseback or wagons pulled by mules but later became part of Colorado's Switzerland Trail when the Greeley, Salt Lake, & Pacific narrow gauge railroad was built in the early 1880s.
Relevant evidence: No