Nothing showed up in the rrdb. Thanks for the thought.
Apparently nothing is in the FCC database. This means any number of things:
1) There are no radios used there. (unlikely)
2) Radios used there are licensed to other entities.
3) Radios used there are unlicensed, possibly because they do not need to be licensed - such as CB, MURS, Part 15 transmitters, etc.
The best way to find out what frequencies are used at a particular location is to turn on a scanner and search for them.