As it is, roadgeeks are pretty well-satisfied with the Roadgeek 2005 set
of fonts for imitating road signs. However, that set does not include
Clarendon, which is used on road signs by the National Park Service, or
any lookalike.
Does anyone know a freeware lookalike? Here's a photo example:
<http://www.southeastroads.com/vsr/images/fhp54_020505.jpg>