After passing through the village of Monkton, the Northern Central Railroad continued northward through the abandoned villages of Pleasant Valley and Bluemount toward White Hall, a distance of approximately 3.5 miles.
Early in the 1800s a . . . — — Map (db m183579) HM
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 . . . — — Map (db m169259) HM
This property has been place on the National Register of Historic Places by the United States Department of the Interior circa 1870 — — Map (db m95651) HM
A hexagonal fieldstone structure built ca. 1850 by local stone mason Joshua W. Stevens, the Prospect School served grades one through eight until 1930. Polygonal buildings - more typically octagons - were promoted in the mid 19th century for their . . . — — Map (db m52649) HM
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