# Pittsburgh & Steubenville Extension Railroad Tunnel

> rail tunnel in Downtown Pittsburgh

**Wikidata**: [Q15266899](https://www.wikidata.org/wiki/Q15266899)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Pittsburgh_&_Steubenville_Extension_Railroad_Tunnel)  
**Source**: https://4ort.xyz/entity/pittsburgh-steubenville-extension-railroad-tunnel