Tri-County Veterinary Services Large Animal Vet Contact Information Phone: (304) 366-6926 Address: Mount Zion Road, Fairmont, West Virginia 26554 Get Directions About Tri-County Veterinary Services is a large animal vet located in Fairmont, WV. Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API. Claim Listing Recently Viewed: Loading...