There are
2,247 mi
from Gresham, OR to Alpena, MI
That's the driving distance. It would take 1 day 17 hours to go from Gresham, Oregon to Alpena, Michigan.
The flight distance (direct flight from Gresham, OR to Alpena, MI) is 1,877.27 mi.
2,247 mi = 3.22 kms