Mauritania total: 7,660 km paved: 866 km unpaved: 6,794 km (1999)
Mauritius total: 2,020 km paved: 2,020 km (including 75 km of expressways) (2005)
Mayotte
total: 93 km
paved: 72 km
unpaved: 21 km
Mexico
total: 235,670 km
paved: 116,751 km (including 6,144 km of expressways)
unpaved: 118,919 km (2004)
Micronesia, Federated States of
total: 240 km
paved: 42 km
unpaved: 198 km (1999)
Midway Islands
total: NA
Moldova
total: 12,733 km
paved: 10,976 km
unpaved: 1,757 km (2004)
Monaco total: 50 km paved: 50 km (1999)
Mongolia
total: 49,250 km
paved: 1,724 km
unpaved: 47,526 km (2002)
Montenegro
total: 7,353 km
paved: 4,274 km
unpaved: 3,079 km (2005)