Looking for good maps.
 

Working on my Alaska trip for next year. I'm having a hard time finding good waterproof maps for backup to the GPS.

I think I would like maps of BC, Yukon, Alaska, Oregon, Idaho, Washington.

I'd also love to find a one piece wall map of the above area, but not too expensive.

Any suggestions?

Google and/ or Amazon search will get you at least BC & Alaska
e.g.
Amazon.com: USA, Alaska Waterproof Road Map (World Mapping Project) (9783831771479): Reise Know-How: Books

Also check out these guys - Maps for travel, City Maps, Road Maps, Guides, Globes, Topographic Maps
You may want to call and inquire on which ones are waterproof.

Reise-Know how maps are waterproof and tear resistant.

The Alaska, USA and Canada ones did the job for me across the continent...

Available direct from the manufacturer or a wide variety of retailers.

+1 for Reise Know-How maps.

It's a German publisher reputable for its guidebooks and they include in the maps plenty of info taken from the guides (hotels, restaurants, sights, etc). And water and tear-resistant.

+2 for Reise Know-How.