Map of interurban and other railroad lines in the northern Willamette Valley region, dated 1908. The map shows existing electric interurban lines radiating out from Portland: to the Kenton neighborhood, Troutdale, Estacada, Oregon City and Hillsboro. Another electric interurban line goes south to Woodburn, and off the map towards Salem. Non-electric railroad lines are also shown on the map, as are a few planned electric interurban lines that had not yet been constructed.