Welcome to Greenhouse Earth–Portland edition. The Portland archipelago awaits your descendants.
Help keep this project going–
Buy the map.
Or purchase in-person at Beard’s Framing Shops.
Update: Someone pointed out these maps showing the Missoula floods–Very cool! http://www.oregonlive.com/environment/index.ssf/2012/06/lidar_map_shows_path_of_missou.html