The club approach is the best, but you could also use the forum's member search function to see where current members live.
Under "Menu," just:
*Click on "Members,"
*Click on "Advanced Members Search,"
*Click on "Search by Geographical Data,"
*Select "United States" in the pulldown menu,
*Put in your ZIP code,
*Select the number of miles you want to search from your location (it defaults as "Exact," but it's a pulldown menu that includes miles),
*Under "Show Results As," select either list or map,
*Click on the list or map icons to see which members include contact information. (If you use "list," the first click gives you basic info, but if you click on the username, it brings up a profile screen for that member. "Map" requires another extra click on the username to get you to the profile.)
Unfortunately, too few include their email addresses in their profiles. But at least you would get a sense about how many OGR Forum members are around you, and you could use their usernames in creating a post to invite them to contact you.