Directory ShareTweetLandmark National Bankbanklandmark.comP.O. Box 212Pittsburg, KS 66762620-232-1100Fax: 620-232-6404EmailContactsGreg Owen, Mortgage Lending OfficerLindy Watson, Bank ManagerBANKS & BANKING ASSOCIATIONS Membership Directory | Chamber Calendar of Events | Member Account | Community Calendar of Events | Job Search | Member Promotions | News Advertisement