From the North:

Take US-127 South to the M-46E Edmore/Alma exit. Take a slight right on 26/N Alger Rd (signs for Alma) for two miles and turn right on W Superior. Arrive to destination on left.

From the South: 

Take US-131 North to the M-46E exit (120). Continue for approx. 40 miles and turn right on Luce Rd. Follow to dead end, turn left on W Superior. Arrive to destination on left.

[Source: Google Maps, http://www.google.com/maps/]