411 REFERENCE · Wiktionary
Lost Dakota
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
Lost Dakota
en historical US A small, uninhabited portion of land that was left over after the division and organization of the large former Dakota Territory remnants into five new states in the late 19th century, which was overlooked by the federal government for years. It was located at the tripoint between the current states of Idaho, Wyoming, and Montana.
en Idaho, USA Montana, USA Wyoming, USA