This is the western endpoint of M-21 at its junction with M-37 on the east side of Grand Rapids. Note that M-37 is a divided highway in this stretch. As such, a "Michigan left" maneuver is required for traffic looking to turn onto southbound M-37 from westbound M-21. The photo was taken by Brian Reynolds on May 5, 2002.
The eastern terminus of M-21 is at I-475 in downtown Flint. If you have a photo of that end of M-21, please contact me.