This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/an/EZB.2ACE/1180.1 Message Board Post: Keystone was at the far eastern tip of Pawnee County, at the junction of the Cimarron and Arkansas rivers (now part of Keystone Lake). The closest cemeteries to Keystone appear to be Sinnett Memorial Cemetery and Leroy Cemetery, both in Pawnee County.