2012. von Dohlen, Jerry. This polygon shapefile depicts the administrative boundaries and Spheres of Influence for Cities over which the County of Humboldt, California hold... Humboldt County Planning and Building Department.
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2015. von Dohlen, Jerry. This polyline shapefile depicts centerlines for the Arcata and Mad River Transit System Red and Gold Routes in the County of Humboldt, California. ... Humboldt County Planning and Building Department.
2015. von Dohlen, Jerry. This point shapefile depicts centroid locations for stops on the Blue Lake Rancheria Transit System Route in the County of Humboldt, California. Th... Humboldt County Planning and Building Department.