Description: Mile_Marker_Signs contains point data showing approximate locations of mile marker signs (mileposts) along interstate (including Maine Turnpike) both north and southbound as well as State Route 9 between Eddington and Baileyville (a.k.a. 'The Airline') and US Route 201 between West Gardiner and Topsham. Data sources include field data collection with GPS along I-95 and I-295 in 2004 and 2019 observations from road-level images available through Google Street View and iVision (images collected from MaineDOT’s pavement analyzer vehicle).Issues can be reported to GIS Services at 207-624-3329