Use google *image* search for maps. Using the OP's words (zone map) in
a google image search had two hits for the desired image in the first page.



Stephen Henning wrote:
"Travis" wrote:


Ol' Duffer wrote:

Anyone have link(s) to online garden/landscape zone map(s)?

Google is your friend.


And the term "USDA Hardiness Zone Map"

There are about 4,000 links for the map on Google.