mLive shared an update on Michigan’s fall color progression that says in part:
The frost and freezing temperatures for two or three days in a row last week have sparked the fall colors. A leaf’s nutrition supply is cut off from the main tree with a freeze. The underlying color pigments in the leaf then emerge for our fall splendor.
The western half of the Upper Peninsula has about 50 percent of total fall color. The eastern U.P. is around 25 percent changed now. The northern third of Lower Michigan has 25 percent to 50 percent fall color. The southern half of Lower Michigan runs from 10 percent to just spotty color from north to south.
Wu took this photo back in 2015 on US-41 US-41 near Copper Harbor on the UP’s Keweenaw Peninsula. See more on their Flickr!