Contacting a local vet is the best advice. If they cannot offer services directly, they certainly can give you information about who to contact in the area. We have provided this service many times over the years to people who were visiting or passing through our area.
Another bookmark to keep handy is the
AAHA hospital lookup search engine. When planning a trip with an elderly pet or when you have an animal that has major ongoing problems this would be a useful tool in keeping track of what's available along your trip.
Doug, DVM