Keywords: Ponca Tribe Community buildings main 1.JPG en Ponca Tribe of Nebraska community buildings located at 88915 521 Avenue south of Niobrara in rural Knox County Nebraska Main building seen from the east 2013-05-25 11 34 42 own Ammodramus cc-zero Uploaded with UploadWizard Pictures by Ammodramus Ponca Tribe of Nebraska Community Buildings |