See this report in the Mohave Valley Daily News dated 06/16/18. No reason was given for the gather or the number of animals to be removed.
Bullhead City lies to the west of the Black Mountain HMA, but does fall within the Black Mountain HA, a space where WHB are not managed by the BLM because the land doesn’t have the resources to sustain them. Go figure.
The Black Mountain HMA is noted for the panhandlers in Oatman, who work the tourists on a 9-to-5 basis.