Arizona State Route 189
| Mariposa Road | ||||
SR 189 highlighted in red | ||||
| Route information | ||||
| Maintained by ADOT | ||||
| Length | 3.75 mi (6.04 km) | |||
| Existed | 1956–present | |||
| Major junctions | ||||
| South end | Fed. 15D at Mexican border in Nogales | |||
| I-19 in Nogales | ||||
| North end | BL 19 in Nogales | |||
| Location | ||||
| Country | United States | |||
| State | Arizona | |||
| Highway system | ||||
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State Route 189 (SR 189) is a highway in Santa Cruz County, Arizona that runs from its junction with Interstate 19 to the US-Mexico Border. It is a north–south route for its entirety.
The highway is a portion of, and the southern terminus of the United States section of the CANAMEX Corridor, a trade corridor that stretches north from Mexico across the United States to the Canadian province of Alberta.