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1947 Map of Manada Gap

Name: 1947 Topographic Map of Manada Gap
Creator: U.S. Geological Survey
Published: 1947
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1947

About this map

Indiantown Gap Military Reservation dominates the rugged ridge-and-valley landscape of Dauphin County in the years following World War II. The map reveals the intricate topographic layers of the Appalachian range, where Peters Mountain, Stony Mountain, and Sharp Mountain run in parallel ranks. A significant portion of the northern terrain is dedicated to the Harrisburg Water Supply and the Cold Spring Military Reservation, illustrating the region's importance for both regional infrastructure and national defense.

Lower elevations toward the south showcase the established rural life of Grantville and the Manada Gap settlement. Local history is anchored by St Johns Church and the Webster School, while the presence of a Dismantled Railroad and Manada Furnace Church points to the industrial evolution of the area. This survey captures a moment when mid-century military expansion coexisted with deep-rooted agricultural and small-town Pennsylvania communities.