I'm trying to make a map for a post apocalyptic idea I have. The landscape is your typical barren frozen wasteland caused by radiation and a large drop of temperature. I need to make a map based on the area so I can keep track on where every location I create is. Any ideas where I can find a website to make this on?
There is a lot of interesting generators at Wizardawn. The World Maps generator with a Snow Climate is probably the closest to what you're looking for. You can use the Post-Apocalyptic Style if you want it to generate locations for you, or Empty if you want to do it yourself. It may need some tweaking, but it should get you off to a good start, and there are a lot of other cool generators that may help was well.
The Morrow Project had rules for taking an existing map, and targeting nuclear missiles on it, and determining the results. I distinctly remember the example in the rulebook mentioning that the author had received a traffic ticket in a particular city, so used it for the example.
Dundjinni can make fantasy or future maps, and thus should suit post-apocalyptic RPGs. See the site's gallery for various examples. This software comes in both trial and paid versions.
This generator also ought to help you immensely. It's free, online, and creates printable maps.