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Hard Surface Trails \u2013 Hard surface trails may include asphalt paths but they may also be any firm and stable surface capable of supporting casual walkers and cyclists. Park Trails in Montgomery County, MD with emphasis on the M-NCPPC Montgomery Parks network. There is also information on trails provided by other entities. Only officially sanctioned trails are displayed on public interface, however internal users can view trail units in their varying stages of construction or unsanctioned status. The data is used for analysis as it pertains to trail and amenity planning, regional network planning, route and program planning. The data is also used on our public facing materials such as maps and webpages. WorkflowThis layer is regularly updated as unknown assets are added in the field, or as new assets are placed, changed, or removed. 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