The following is a list of known Keystone Markers. Some are still extant, and others are now missing and only known through photographs and memories. Most of the markers that can still be found around Pennsylvania are the town name markers, though there are other varieties. Choose a category listed below to view a list of that type of marker.
View the database sorted by county
Town Names
Waterways
State Facilities and Universities
Historic Sites
Traffic Markers
Large Markers
Variants and Other Replacements
View the database sorted by county
Town Names
A
B
C
D
E
F
G
H
I
J
K
L
M
• Media
N
O
P
Q
R
• Rutledge
S
T
U
V
W
• Wilmore
Y
Z
Waterways
A
B
C
D
F
G
H
J
L
M
N
P
R
S
T
V
W
Y
State Facilities and Universities
D
G
L
P
S
T
W
Historic Sites
A
B
C
D
G
L
P
R
W
Traffic Markers
D
L
P
• Private
S
T
Large Markers
B
C
D
E
G
K
L
R
S
T
W
Variants and Other Replacements
A
B
C
D
E
H
I
• Ingram
J
L
M
N
O
Q
S
T
V
W
Y