Front:
PA-104
"America's Super Highway"
ELI
TYRONE
LEWISTOWN o
EBENSBURG
NEW ALEXANDRIA
22
AMITY HALL
22
CRESSON
ALTOONA
MT. UNION
Putbungh
JOHNSTOWN
IRWIN
GREENSBURG
LIGONIER
POSITION OF TUNNELS
JENNERSTOWN
SOMERSET
1-Laurel Hill
2-Allegheny
3-Ray's Hill
4 Sideling Hill
5-Tuscarora
6-Kittatinny
7-Blue Mountain
30
BEDFORD
YORK
緊加。
MCCONNELLSBURG
CHAMBERSBURG
30
GETTYSBURG
New Stanton Viaduct on the Pennsylvania Turnpike
EVERETT
CARLISLE
OB-H956
Back:
5-200
New Stanton Viaduct, largest of the 300
grade separation structures and stream cross-
ings on the Pennsylvania Turnpike.
MINSKY BROS. & Co., PUBLISHING DIVISION, PITTSBURGH, PA.
"C.T.ART-COLORTONE' REG. U.S. PAT. OFF.