. "Delmar Calaboose"@en . . . "Delmar Calaboose is an historic structure located in Delmar, Iowa, United States. The word calaboose is a corruption of the Spanish word calabozo, which means dungeon. The building was built for and used as a jail in frontier Iowa. The walls and roof of the one-story structure are composed of limestone and mortar. It was listed on the National Register of Historic Places in 1981."@en . "1981-03-19Z"^^ . "1878Z"^^ . "81000231" . .