435 Routes
- Upper Lewis River Falls Washington -> St. John Washington
- Upper Nutria New Mexico -> Grenada Mississippi
- Upper Nutria New Mexico -> Holly Grove Arkansas
- Upper Nyack New York -> Gilson Illinois
- Upper Rice Lake Minnesota -> Bauxite Arkansas
- Upper Rice Lake Minnesota -> Conover North Carolina
- Upper Rice Lake Minnesota -> Fort A.p. Hill Virginia
- Upper Sandusky Ohio -> Warfield Virginia
- Upper Soda Oregon -> Arapahoe North Carolina
- Upper Soda Oregon -> St. Paul Oregon
- Upper South Amana Iowa -> Bear Idaho
- Upper South Amana Iowa -> Cecil-bishop Pennsylvania
- Upper Spencer Kentucky -> Springfield New Hampshire
- Upper St. Clair Pennsylvania -> Salem South Dakota
- Upper St. Regis New York -> Somersworth New Hampshire
- Upper Strasburg Pennsylvania -> Eugene Airport Oregon
- Upper Strasburg Pennsylvania -> Mifflinville Pennsylvania
- Upper Sugarloaf Key Florida -> Lucas Kansas
- Upper Sugarloaf Key Florida -> Parrott Georgia
- Upper Track West Virginia -> Audra State Park West Virginia
- Upper Wheatfields Arizona -> Totacon Arizona
- Upperville Virginia -> Bangert Missouri
- Upperville Virginia -> Dibble Oklahoma
- Upsala Minnesota -> Motley Minnesota
- Upsala Minnesota -> Sanger North Dakota
- Upton -> Eastford Connecti
- Upton -> Pine Knob
- Upton Massachusetts -> Dowling Michigan
- Upton North Carolina -> Machipongo Virginia
- Upton Wyoming -> Boise Idaho
- Upton Wyoming -> Monitor
- Upton Wyoming -> Monroe Louisiana
- Uravan Colorado -> View Texas
- Urban Kentucky -> Webster State Park Kansas
- Urban Pennsylvania -> Allenwood Pennsylvania
- Urban Pennsylvania -> Twin Sisters Texas
- Urbana -> Decatur
- Urbana Illinois -> Chase Lake North Dakota
- Urbana Illinois -> Dewees Island South Carolina
- Urbana Illinois -> Kingston Mines Illinois
- Urbana Indiana -> Spuds Florida
- Urbana Iowa -> Preston Oklahoma
- Urbana Missouri -> Broaddus Texas
- Urbana Missouri -> Herbert
- Urbana New York -> Bingham Michigan
- Urbana New York -> Cumberland Rhode Island
- Urbana New York -> Dayton Idaho
- Urbana Ohio -> Vandalia Ohio
- Urbandale Iowa -> Leakesville Mississippi
- Urbank Minnesota -> I65 And Al 185 Alabama
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