The biggest change is the inclusion of more mainstream rock music to their song selection.
The upgrade took place on September 28, 2007 at 11 am when CMU President Michael Rao gave the order to flip the switch to go to 13,000 watts.
WMHW now reaches Frankenmuth to the east, Big Rapids to the west, Cadillac to the north, St. Johns to the south and all points in between.
As of 2008, the radio station began broadcasting an HD Radio signal; HD1 is the same format as the original station, while HD2 was originally a blend of metal, hip-hop, and indie but has since switched to an Adult Alternative format known as "The Mountain."
On February 15, 2016 WMHW changed their format to adult alternative as "The Mountain", which moved from the HD2 channel.