The Regional Patapsco Greenway (RPG) project ascertains the potential economic impact of adding shared-use pathways connected to a network of shared-use pathways between the following destinations: Baltimore City’s Inner Harbor; the existing BWI Trail; Elkridge; historic Ellicott City; Catonsville; the existing Grist Mill Trail. Currently, the Grist Mill Trail, between Ellicott City and Elkridge, starts at Elkridge but does not extend into Ellicott City. Howard County’s Office of Transportat...