I’ve been to the area several times. The name has already been changed once. I hope Utah doesn’t fold.
https://en.wikipedia.org/wiki/Negro_Bill_Canyon
Negro Bill Canyon (called Nigger Bill Canyon from the late 19th century until the 1960s) is a canyon in southeast Utah. It is part of the Colorado River watershed. Its stream flows directly into the main channel of the Colorado River within Moab Canyon.
Time for another up-date: "Afro-American Bill Canyon" - then another "African-American Bill Canyon." Change it every ten years.
Regards,
Gibsmedat Bill canyon?