The City of Portland Vice Commission created a map of known and suspected immoral dwellings and businesses in the downtown area in 1913. The map has apparently faded to nothing but markers on a white page but by turning, scaling and fitting the known elements (Irving Street, 23rd Avenue, etc.) I was able to overlay the vice map on top of a modern Google map of the city. The resultant composite gives a pretty accurate indication of where much of Portland’s immoral activity took place. Click here to see a raw version of the original map. As always, click on any image to see a larger, more detailed version.