sentence: Historians think that Boulder City was named after Boulder Creek.
sentences_before: Boulder Creek flows through the City. Boulder Creek was named a long time before the city was built. It was named after the big granite boulders that have fallen into the creek over the years.
sentences_after: The water in Boulder Creek comes from melting mountain snow and small rivers West of the city. Boulder Creek is a tributary of the South Platte River.
concept_name: historian
headings: Boulder, Colorado Geography
categories: County seats in Colorado