This US map shows the OPO boundaries and the cities that have Liver Transplant Centers. See how sparse things get west of the Mississippi River?
There are 6 OPOs without liver hospitals, so patients here will have to relocate to another hospital. HINT: try not to go west!
Scaremento, CA
Toledo, OH
Las Vegas, NV
Albuquerque, NM
Albany, NY
Buffalo, NY