The 1967 Detroit riot, also known as the 12th Street Riot, was the bloodiest of the urban riots in the United States during the "Long, hot summer of 1967". Composed mainly of confrontations between black residents and the Detroit Police Department, it began in the early morning hours of Sunday July 23, 1967, in Detroit, Michigan.
The precipitating event was a police raid of an unlicensed, after-hours bar, known as a blind pig, on the city's Near West Side. It exploded into one of the deadliest and most destructive social insurgences in American history, lasting five days and surpassing the scale of Detroit's 1943 race riot 24 years earlier.
Wikipedia https://en.wikipedia.org/wiki/1967_Detroit_riot
Coordinates 42°22'35.852" N -83°5'59.318" E