This point shapefile contains locations of mileposts along Highway 1, Carmel Valley Road, and Arroyo Seco Road, in Monterey County, California. This layer is part of a collection of GIS data for Monterey County in California.This dataset is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.