Westchester Creek is a head-scratcher for travelers as it is named after the county north of The Bronx, but doesn’t flow anywhere near it and never did. Prior to 1895, eastern Bronx was part of Westchester County and the neighborhood near this stream is named Westchester Square. This explains the stream’s name.
The present Westchester Creek is a tidal inlet of the East River with its head at East Tremont Avenue. Prior to the 1950s, the creek flowed further inland where the Bronx Psychiatric Center and the Hutchinson Metro Center stand today. When there’s enough rainfall, a vernal pond next to this office complex hints at the phantom stream that flowed here.