Detailed city map of Portland, dated 1915. Street names; city limits; township, range and section; and parks are noted. Willamette and Columbia river bridges and ferries are labelled. Many railroad lines are also marked on the map. An inset map and accompanying text explain Portland's somewhat complicated street numbering system of the era. A small car line diagram inset shows streetcar lines through the city; a set of loop diagrams illustrate the routes each streetcar line took through downtown Portland. Visit City of Portland Archives for more https://efiles.portlandoregon.gov/record/13249029