The Geography of Biodiesel
Rust Belt, Corn Belt, Biodiesel Belt: one blends into the next if you're touring in a biodiesel powered vehicle across the north-eastern quadrant of the US. There are enough stations in the "belt," as approximated in the grapic, that you won't find yourself without biodiesel unless you enter one of the "non-renewable" zones like Upstate New York. See this biodiesel retail sales locator map for a broader picture of what we're talking about, courtesy of the National Biodiesel Board. Practically speaking, the risk of totally running out of fuel is low because you can always fill up with straight petro-diesel or a blend, as shown on this locator map. For everyday driving, large clusters of biodiesel outlets in Minnesota, Missouri, Illinois, and Indiana represent a good and growing infrastructure. In states such as Vermont, Maryland, Michigan, and Virginia, the choices are fewer, but stations are still common enough that, with a little planning, a road trip could likely remain renewably fueled. With the online maps in these two links you can plan your journey around actual hours of pump operation or avoid wasting fuel just to get a fill up, which would be rather "Un-TreeHugger" as we say.