FORT LUPTON — The hunt is on, and everyone is invited.
    Visitors to the Fort Lupton Museum over the next couple of months may find themselves being a bit of amateur sleuths, courtesy of a citywide Treasure Hunt Challenge. The idea, brainchild of museum coordinator DebraRay Thompson and others around town who can’t be named without giving up clues, is to host a fun adventure for participants while showing off some of the city’s notable assets.