Lower Mount Bethel Township near Easton in Northampton County, Pennsylvania — The American Northeast (Mid-Atlantic)

Portland Cement

Photographed by Paul Crumlish, April 4, 2010

1. Portland Cement Marker

Inscription. This industry was born in the Lehigh Valley. David O. Saylor first made portland cement at Coplay in 1871. Here also was the first use of the rotary kiln process commercially Nov. 8, 1889. This region has continued to lead in the industry.

Erected by Pennsylvania Historical and Museum Commission.

Topics and series. This historical marker is listed in this topic list: Industry & Commerce. In addition, it is included in the Pennsylvania Historical and Museum Commission (PHMC) series list. A significant historical date for this entry is October 8, 1944.

Location. 40° 45.926′ N, 75° 10.703′ W. Marker is near Easton, Pennsylvania, in Northampton County. It is in Lower Mount Bethel Township. It is on South Delaware Drive (Pennsylvania Route 611) 0.2 miles Driftwood Drive, on the right when traveling north. Touch for map. Marker is at or near this postal address: 5288 S Delaware Dr, Easton PA 18040, United States of America. Touch for directions.

Regionally, this marker is in Southeast Pennsylvania and in Lehigh Valley.

It is also in the American Northeast

and in the Mid-Atlantic.

Globally, it is in North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once the Haudenosaunee (Iroquois) Confederacy

and also one of the original Thirteen Colonies.

Other nearby markers. At least 8 other markers are within 5 miles of this marker, measured as the crow flies: David Brainerd (approx. 0.6 miles away); Easton (approx. 3.7 miles away); War Memorial (approx. 3.9 miles away); Moses Tunda Tatamy (approx. 4.3 miles away); Sullivan Expedition Against the Iroquois Indians (approx. 4½ miles away); Stockertown Veterans Memorial

Paid Advertisement

Click or scan to see
this page online

(approx. 4½ miles away); Sullivan Campaign (approx. 4½ miles away); • G. Herbert McCracken Gate • (approx. 4.7 miles away). Touch for a list and map of all markers in Easton.

Another marker is no longer nearby. Easton (was approx. 4½ miles away but has been confirmed missing).

Also see . . . MarkerQuest - Portland Cement. (Submitted on January 14, 2026, by Laura Klotz of Northampton, Pennsylvania.)

Wide view of the Portland Cement Marker image. Click for full size.

Photographed by Paul Crumlish, April 4, 2010

2. Wide view of the Portland Cement Marker

Along the banks of the Delaware River

Credits. This page was last revised on January 14, 2026. It was originally submitted on April 9, 2010, by PaulwC3 of Northern, Virginia. This page has been viewed 1,105 times since then and 32 times this year. Photos: 1, 2. submitted on April 9, 2010, by PaulwC3 of Northern, Virginia. • Bill Pfingsten was the editor who published this page.