There are
773 mi
from Gresham, OR to Riverton, UT
That's the driving distance. It would take 13 hours 22 mins to go from Gresham, Oregon to Riverton, Utah.
The flight distance (direct flight from Gresham, OR to Riverton, UT) is 631.06 mi.
773 mi = 1,243.75 kms