ALM on 10/11/2017 4:26:45 PM:
Another cheaper option: take the Amtrak Capital Limited from DC to Cumberland and then when you get to Cumberland, call Uber and see if someone would take you the few remaining miles to Frostburg. There is also a daily scenic tourist train that runsfrom Cumberland to Frostburg (but it is pricey - about $50/pp + your bike).