Minnesota 42 map courtesy of Google Earth
| Length |
| ~31 miles |
| Other names |
| 2nd Ave. (Elgin) Wabasha St. (Plainview) |
| Southern terminus |
| Eyota Township, Olmstead County, JCT I-90/CR-7 |
| Northern Terminus |
| Kellogg, Wabasha County, JCT US-61/CR-18 |
| Municipalities traversed (S to N) |
 Eyota Elgin Plainview Kellogg |
| Points of interest |
| Richard J Dorer Memorial Hardwood State Forest |
| Road intersections |
| I-90 (Exit 224)/CR-7 CR-23 CR-7 US-14 CR-9 CR-2 CR-2 CR-73 CR-25 CR-4 CR-8/MN-247 CR-27 CR-4 CR-14 CR-14 US-61/CR-18 |
| Notes |
Prior to 2001, MN-42's southern terminus was at US-14 in Eyota. By 2002, signage was posted to indicate the new southern terminus. The route now consists of Constitutional Route 42 and Legislative Route 338 (the new southern segment). |