Portland Cement

Portland Cement (HMJZ5)

Location: Allentown, PA 18106 Lehigh County
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Country: United States of America
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N 40° 35.204', W 75° 36.884'

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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.
Details
HM NumberHMJZ5
Tags
Year Placed1947
Placed ByPennsylvania Historical and Museum Commission
Marker ConditionNo reports yet
Date Added Monday, September 1st, 2014 at 2:08am PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18T E 447978 N 4493063
Decimal Degrees40.58673333, -75.61473333
Degrees and Decimal MinutesN 40° 35.204', W 75° 36.884'
Degrees, Minutes and Seconds40° 35' 12.24" N, 75° 36' 53.04" W
Driving DirectionsGoogle Maps
Area Code(s)610
Closest Postal AddressAt or near 7200-7218 Old U.S. 22, Allentown PA 18106, US
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