Portland Vitrified, a topographical relief, glass mosaic map of the Portland metropolitan area. This map has been created to show the volcanic buttes that reside in the city limits, and give name to the buildings at Portland Community College- SE location.
This work is open to the public; and is located on the 3rd fl. of the Student Commons bldg. at PCC-SE, 82nd and SE Division. Go see it! it’s awesome in person.