“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Near Whiteford in Harford County, Maryland — The American Northeast (Mid-Atlantic)

Peach Bottom Slate Region

Peach Bottom Slate Region Marker Photo, Click for full size
By Bill Pfingsten, September 9, 2014
1. Peach Bottom Slate Region Marker
Inscription. A ridge of high quality slate running from southeastern Pennsylvania into Harford County, Maryland, was quarried on a limited scale as early as 1734. Production increased in the 1840s when the opening of the Susquehanna and Tidewater Canal offered a link to markets, and skilled slate workers were recruited from Wales. Rail transport replaced the canal in 1876. Quarries continued to operate into the early 20th century. Peach bottom slate was widely renowned for roofing.
Erected by Maryland Historical Trust & Maryland State Highway Administration.
Marker series. This marker is included in the Susquehanna and Tidewater Canal marker series.
Location. 39° 42.821′ N, 76° 20.868′ W. Marker is near Whiteford, Maryland, in Harford County. Marker is on Pylesville Road 0.2 miles north of Whiteford Road, on the right when traveling north. Click for map. Marker is in this post office area: Whiteford MD 21160, United States of America.
Other nearby markers. At least 8 other markers are within 9 miles of this marker, measured as the crow flies. Mason - Dixon Line (approx. 0.6 miles away in Pennsylvania); King and Queen Seat (approx. 6.4 miles away); Lock No. 12 (approx.
Earlier Peach Bottom Slate Region Marker Photo, Click for full size
By Beverly Pfingsten, June 24, 2007
2. Earlier Peach Bottom Slate Region Marker
Peach Bottom Slate, first used 1734, is the oldest in America. The first commercial cut having been made 1785 by workmen who were primarily Welsh. At the London Crystal Palace Exposition, 1850, Peach Bottom Slate was judged best in the world.
7 miles away in Pennsylvania); Survivor of the Past (approx. 7 miles away in Pennsylvania); Capt. Angus Greme (approx. 8.2 miles away); Berkley Crossroads (approx. 8.2 miles away); Lafayette at Colonel Rigbie’s House (approx. 8.5 miles away but has been reported missing); “Indian Spring” (approx. 8.5 miles away).
Regarding Peach Bottom Slate Region. “The slate region of this State is a continuation of the York County slate belt. The Maryland quarries are all in the northern part of Harford County, near the State line. The quarries of these two counties constitute what is known as the Peach Bottom slate region.” — from The Sixteenth Annual Report of the United States Geological Survey 1894. “Stone” chapter by William C. Day.
Additional comments.
1. Slate Quarries
By clicking on the map link, switching to satellite and moving in closer, you will see 4 dark areas to the southeast of the marker. These are the quarries that are now filled with water.
    — Submitted June 26, 2007, by
Peach Bottom Slate Region Marker Photo, Click for full size
By Bill Pfingsten, September 9, 2014
3. Peach Bottom Slate Region Marker
Bill Pfingsten of Bel Air, Maryland.

Categories. Colonial EraIndustry & CommerceNatural Resources
Credits. This page originally submitted on , by Bill Pfingsten of Bel Air, Maryland. This page has been viewed 3,283 times since then. Photos:   1. submitted on , by Bill Pfingsten of Bel Air, Maryland.   2. submitted on , by Bill Pfingsten of Bel Air, Maryland.   3. submitted on , by Bill Pfingsten of Bel Air, Maryland. • J. J. Prats was the editor who published this page. This page was last revised on June 16, 2016.
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