The site is commemorated by a plaque, and concrete markers outline the locations of the original buildings.

Inmates stack the pine coffins in two rows, three high and 25 across, and each plot is marked with a single concrete marker.

Demarcation - opening a cut in the forest and placing concrete markers - is an important step toward establishing a reservation.

One of the attractions on this trail is a concrete marker shows the exact line where New York and Pennsylvania meet.

Philippines claimed that China had a well-rehearsed routine when laying claim to a new reef: first put down buoys, then build concrete markers.

A concrete marker on the building's facade features the inscription, "Forde 1921".

The old rail lines are dotted with small mysteries: Why were concrete markers placed alongside the tracks at regular intervals?

In June 2007, his grave had a concrete marker replaced with a granite gravestone.

This point was historically the start of the line; the marker is a simple concrete marker, with "0" painted on it.

A number of workers lost their lives constructing the dam; their graves, which are marked by concrete markers, are close to the dam.