There's been a lot of babble lately about Vancouver's historical waterways! If you're interested because you've been following the story about salmon spawning in Still Creek, if you can't make it to Sunday's Historical Creek Walk, or if you would simply like to learn more, there are few good resources on the Internet.
Click on the picture to go to a great article with links to a larger version of this map, produced by the Vancouver Aquarium in the 1970s.
Recently, someone at UBC has fully digitized this map and also made it available as a layer in Google Maps. A PDF file and the Google Maps version can be found here:
http://koerner.library.ubc.ca/services/gis-services/secret-waterways/