Analysis of information sources in references of the Wikipedia article "Northkill Creek" in English language version.
Marker Text: The first organized Amish Mennonite congregation in America. Established by 1740. Disbanded following Indian attack, September 29, 1757, in which a Provincial soldier and three members of the Jacob Hochstetler family were killed near this point.
The Northkill Creek is among Berks County's highest quality streams, designated as exceptional value in its headwaters and with all tributaries designated cold-water fisheries. * * * [W]ater-quality degradation and only warm-water fishes were found in lower reaches near Bernville. Suburban development, sewage discharges, and poor farming practices were suggested as principal causes of watershed problems.
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(help) chapter on Fort Northkill, includes drawing of "Present Site of Fort Northkill