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M-4 (Michigan highway)
M-4
, was formerly the
designation
of two different
routes
in the
US state
of
Michigan
.
M-4 was the original designation of
M-134
in
Mackinac
and
Chippewa
counties
.
M-4 was the original designation of
M-10
from I-696/US
24
to the
northern
terminus
.