Landmark Bank, National Association
1616 Arlington, Ada, OK 74820
Landmark Bank is a commercial bank with a national (federal) charter. It is a Fed member and is supervised by the Office of the Comptroller of the Currency (OCC).
Landmark Bank began operations on 2/21/1997. Landmark Bank recently reported it had 14 branch offices.
Web address listed with FDIC: http://www.landmarkbanks.com