On Monday, while returning from a western trip, I attempted to clinch MN 275 but found it no longer exists. The road is now signed only as Lac Qui Parle county 29. The only indications that it was once MN 275 are the mileposts and the street name ("State Highway 275"). It does appear as a past turnback project on MnDOT's 2018 Jurisdictional Transfer Program report.
I suggest that this route be removed from MN state highways.