
The Delaware River carves a deep valley through the high ground of the Musconetcong Mountain and Riegel Ridge area, defining the border between Hunterdon County and Bucks County. Riverfront settlements such as Frenchtown, Milford, and Upper Black Eddy serve as historic nodes of activity along this aquatic corridor. The landscape is characterized by steep ravines cut by waterways like Nishisakawick Creek and Hakihokake Creek, which drain the agricultural and wooded uplands where smaller hamlets like Baptistown and Mount Pleasant are situated. Large tracts of protected territory, including State Game Lands No 56, dominate the Pennsylvania side, while the New Jersey side shows a pattern of rural development around sites like the Alexandria Cem and the Township Sch. Industrial and utility markers, such as a Power House and a Landing Strip, indicate the modern infrastructure integrated into this river-valley geography.
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1890 · Easton
USGS Topo · 1:62,500
1890 · High Bridge
USGS Topo · 1:62,500
1890 · Lambertville
USGS Topo · 1:62,500
1890 · Doylestown
USGS Topo · 1:62,500
1891 · Easton
USGS Topo · 1:62,500
1891 · Lambertville
USGS Topo · 1:62,500
1891 · Doylestown
USGS Topo · 1:62,500
1894 · Lambertville
USGS Topo · 1:62,500
1898 · High Bridge
USGS Topo · 1:62,500
1900 · Raritan
USGS Topo · 1:125,000