Pennsylvania Route 670

Pennsylvania Route 670
Route information
Maintained by PennDOT
Length	21.264 mi[1] (34.221 km)
Major junctions
South end	PA 191 in Honesdale
Major intersections	PA 247 in Mount Pleasant Township PA 170 in Mount Pleasant Township PA 371 in Mount Pleasant Township
North end	PA 370 in Preston Township
Location
Country	United States
State	Pennsylvania
Counties	Wayne
Highway system
Pennsylvania State Route System Interstate US State Scenic Legislative
← PA 669 → PA 672

Pennsylvania Route 670 (PA 670) is a 21.26-mile-long (34.21 km) state highway located in Wayne County, Pennsylvania. The southern terminus is at PA 191 in Honesdale. The northern terminus is at PA 370 in Preston Township. The route is a two-lane undivided road that runs through rural areas in the northern part of Wayne County. PA 670 heads northwest from PA 191 and passes through Bethany. Farther northwest, the route crosses PA 247 and intersects the northern terminus of PA 170 before turning west to run concurrent with PA 371 in Pleasant Mount. PA 670 turns north from PA 371 and continues to its end at PA 370 in Orson.

The route follows the alignment of two turnpikes chartered in the 19th century. The southern portion of the route follows the Bethany and Honesdale Turnpike chartered in 1831 while the section north of Pleasant Mount follows the Belmont and Easton Turnpike, which continued south to Easton, which was chartered in 1812 and completed in 1820. The road in the Pleasant Mount area was designated as part of PA 170 in 1928. By 1930, PA 670 was designated between PA 170 (now PA 371) in Pleasant Mount and PA 370 in Orson. The route was extended southeast to PA 90 (now PA 191) north of Honesdale in the 1930s, replacing the section of PA 170 through Pleasant Mount.