New York State Route 258 (NY 258) is a state highway located entirely within the town of Groveland in Livingston County, New York, in the United States. It connects NY 36 in the hamlet of Ross Corners to NY 63 in the hamlet of Groveland Station. NY 258 is named Flats Road and passes through the flat terrain of the valley surrounding Canaseraga Creek. Most of NY 258 is routed along the Groveland–West Sparta town line.

New York State Route 36 (NY 36) is a north–south state highway in the western part of New York in the United States. The highway extends for 95 miles (153 km) from the Pennsylvania state line at Troupsburg, Steuben County northward to Ogden, Monroe County, where it ends at an intersection with NY 31. Along the way, NY 36 passes through the villages of Canisteo, Dansville, Mount Morris, Caledonia, and Churchville and the city of Hornell. The section of the route between Dansville and Mount Morris closely parallels Interstate 390 (I-390); however, from Dansville south and Mount Morris north, NY 36 serves as a regionally important highway, connecting to I-86, U.S. Route 20A (US 20A), US 20, and I-490 as it heads north. At its south end, NY 36 connects to Pennsylvania Route 249 (PA 249).