Again, if you have any neighbors with cattle, introduce yourself and ask who they use for a vet... contact your county extension agent and see if they have any seminars and such... sign up and go to a few, get to know some people... they will also know the vets around the area...
Your local feed store is a good source of local sources... vets, AI, all that... check the bulletin boards at some of them... also your local stockyard would have a vet "on call" so to speak to do preg checks for cows being sold as bred... ask them....
You don't have to get tied down to one person until you find one you like... but more info is good to sift through....