By Verbal Reference or by Youtube Video: What is the longest HR ever?

[Mr. Friscus]

Barry Bonds crushed this...

 

[MarathonMike]

Before my time but I seem to recall Mickey Mantle hit a 565 foot home run back in the day.

 

[Mr. Friscus]

Before my time but I seem to recall Mickey Mantle hit a 565 foot home run back in the day.

where and when

 

[MarathonMike]

Here you go....

Mantle hits 565-foot home run

Mickey Mantle's home run on April 17, 1953, in Washington, D.C., shocked the baseball world.

baseballhall.org

 

[Godboy]

The record is 582 feet. Joey Meyer

 

[Godboy]

...and then there is this.