This polyline shapefile depicts centerlines for a Digital Line Graph (DLG) of Roads in the County of Humboldt, California, including logging roads. DLG data is a digital representation of cartographic information. This coverage was derived from United States Geological Survey DLGs and was compiled to support a cumulative watershed effects assessment project.The Humboldt County Planning and Building Department is responsible for protecting the public health, safety and welfare via building permit review and inspections consistent with California model codes as well as planning and development review and approval consistent with the county's General Plan. This Department oversees the Advance Planning Division, which is responsible for the Humboldt County's Geographic Information System (GIS) that is utilized by other County Departments; many federal, state and local agencies; and the general public. This coverage can be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data.