Yes, there is some GREAT riding in Washington Co.....and it is becoming more and more cycling friendly.
There are two pretty good century rides in August that will definitely work some muscles you "Seagullers" don't regularly use (just kidding)
I've done the Seagull and LOVE the fast pacelines!
Check out the C.V.C.C. website (http://www.bikecvcc.com/)
There is a nice section of Rails to Trails that run from Big Spring to above Hancock...around 22 miles....this is a pleasure to ride! ....we also have the C&O Canal to ride on.