Interstate 79 (English Wikipedia)

Public Roads Administration (August 14, 1957). Official Route Numbering for the National System of Interstate and Defense Highways, as adopted by the American Association of State Highway Officials (Map). Scale not given. Washington, DC: Public Roads Administration – via Wikimedia Commons.
Bureau of Public Roads (September 1955). "Erie" (Map). General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955. Scale not given. Washington, DC: Government Printing Office. p. 74. OCLC 4165975 – via Wikimedia Commons.
Bureau of Public Roads (June 27, 1958). Official Route Numbering for the National System of Interstate and Defense Highways, as adopted by the American Association of State Highway Officials (Map). Scale not given. Washington, DC: Bureau of Public Roads – via Wikimedia Commons.

dot.gov (Global: 1,620^th place; English: 841^st place)

fhwa.dot.gov

Starks, Edward (January 27, 2022). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved March 31, 2023.
Weingroff, Richard (June 27, 2017). "Was I-76 Numbered to Honor Philadelphia for Independence Day, 1776?". Ask the Rambler. Federal Highway Administration.

gribblenation.com (Global: low place; English: low place)

"Ghost Ramps". Gribblenation.com. June 5, 2005. Retrieved August 8, 2017.^{[self-published source]}

kurumi.com (Global: low place; English: low place)

"3-digit Interstates from I-79". kurumi.com.^{[self-published source]}

maps.google.com (Global: 1,506^th place; English: 896^th place)

"Ghost ramps around the 100 mile marker" (Map). Google Maps. Retrieved August 8, 2017.

nationalatlas.gov (Global: low place; English: low place)

National Atlas of the United States, Hydrologic Units (Watersheds) GIS data Archived May 4, 2013, at the Wayback Machine

news.google.com (Global: 67^th place; English: 32^nd place)

Grata, Joe (March 31, 1991). "PennDOT to Restrict I-79 Lanes This Year". Road Report. The Pittsburgh Press. p. A14 – via Google News Archive Search.

newspapers.com (Global: 24^th place; English: 12^th place)

"Interstates Renumbered". The Pittsburgh Press. February 24, 1972. p. 8. Retrieved November 30, 2017 – via Newspapers.com.

pahighways.com (Global: low place; English: low place)

"Pennsylvania Highways: Interstate 79". Pennsylvania Highways. Retrieved March 22, 2022.^{[self-published source]}

post-gazette.com (Global: 819^th place; English: 433^rd place)

"'Missing links' take shape at I-79/Parkway West". Pittsburgh Post-Gazette.
Schmitz, Jon (August 18, 2009). "Neville Island Bridge project to bring closures, restrictions". www.post-gazette.com. Archived from the original on December 27, 2017. Retrieved November 11, 2012.
Blazina, Ed (June 19, 2022). "Pennsylvania Turnpike finishes Southern Beltway, ready to begin Mon-Fayette Expressway". Pittsburgh Post-Gazette. Retrieved June 19, 2022.

state.pa.us (Global: 2,302^nd place; English: 1,058^th place)

dot.state.pa.us

"Pennsylvania Exit Numbering" (PDF). Pennsylvania Department of Transportation. Archived from the original (PDF) on December 23, 2015. Retrieved October 2, 2007.

timeswv.com (Global: low place; English: low place)

Panuska, Mallory (December 22, 2010). "Gateway Connector opens today". Times West Virginian. Fairmont, West Virginia. Retrieved December 22, 2010.

web.archive.org (Global: 1^st place; English: 1^st place)

National Atlas of the United States, Hydrologic Units (Watersheds) GIS data Archived May 4, 2013, at the Wayback Machine
Schmitz, Jon (August 18, 2009). "Neville Island Bridge project to bring closures, restrictions". www.post-gazette.com. Archived from the original on December 27, 2017. Retrieved November 11, 2012.
Federal Highway Administration, National Highway Planning Network GIS data version 2005.08
"Pennsylvania Exit Numbering" (PDF). Pennsylvania Department of Transportation. Archived from the original (PDF) on December 23, 2015. Retrieved October 2, 2007.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Bureau of Public Roads (September 1955). "Erie" (Map). General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955. Scale not given. Washington, DC: Government Printing Office. p. 74. OCLC 4165975 – via Wikimedia Commons.
Bureau of Public Roads (September 1955). "Pittsburgh and environs" (Map). General Location of National System of Interstate Highways Including All Additional Routes at Urban Areas Designated in September 1955. Scale not given. Washington, DC: Government Printing Office. p. 77. OCLC 4165975 – via Wikimedia Commons.

wv.gov (Global: low place; English: 5,954^th place)

transportation.wv.gov

"Work on Interstate 79 widening and bridge projects nearing completion in Harrison, Marion, and Monongalia counties".

Interstate 79 (English Wikipedia)

cbsnews.com (Global: 136th place; English: 93rd place)

commons.wikimedia.org (Global: 484th place; English: 698th place)

dot.gov (Global: 1,620th place; English: 841st place)

fhwa.dot.gov

gribblenation.com (Global: low place; English: low place)

kurumi.com (Global: low place; English: low place)

maps.google.com (Global: 1,506th place; English: 896th place)

nationalatlas.gov (Global: low place; English: low place)

news.google.com (Global: 67th place; English: 32nd place)

newspapers.com (Global: 24th place; English: 12th place)

pahighways.com (Global: low place; English: low place)

post-gazette.com (Global: 819th place; English: 433rd place)

state.pa.us (Global: 2,302nd place; English: 1,058th place)

dot.state.pa.us

timeswv.com (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

wv.gov (Global: low place; English: 5,954th place)

transportation.wv.gov

cbsnews.com (Global: 136^th place; English: 93^rd place)

commons.wikimedia.org (Global: 484^th place; English: 698^th place)

dot.gov (Global: 1,620^th place; English: 841^st place)

maps.google.com (Global: 1,506^th place; English: 896^th place)

news.google.com (Global: 67^th place; English: 32^nd place)

newspapers.com (Global: 24^th place; English: 12^th place)

post-gazette.com (Global: 819^th place; English: 433^rd place)

state.pa.us (Global: 2,302^nd place; English: 1,058^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)

wv.gov (Global: low place; English: 5,954^th place)