After the ROD, another referendum found city voters still supporting light rail but county voters opposed. The federal government nonetheless set aside funding for the segment to the airport, which would have been the first rural light rail line built in the U.S. Later referendums on bond issues to fund the city's portion failed, and after the failure of another referendum to build a monorail between Denver and ski resorts along I-70 the project did not seem likely to begin until money was available from another source.