- COORDINATES: 40.310714, -79.826902
- COUNTY: Allegheny
- DISTANCE TO NEXT: Elizabeth - 7
- EXPLANATION OF NAME: Named For Boston, Massachusetts
- FOUNDED: 1886
- MANUFACTURER: Geiser Manufacturing Company
- STATUS: Marker rehabbed 2012 as part of PennDOT bridge project. Original post gone. Finial missing.

1979 photo by Fred Yenerall

2011 photo by J. Struzzi

2013 photo by M. Wintermantel

July 2014 photo by Mike Wintermantel

Unknown
PA 48 near West Smithfield Street