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Curated OER
Etc: Maps Etc: Drainage Lines of the Eastern Adirondacks, 1911
A contour map from the vicinity of Elizabethtown showing the rectangular pattern of relief and drainage lines in fault-block mountains of the eastern Adirondacks.
Curated OER
Etc: Trans Pecos Highlands, Texas, 1911
A contour map from 1911 of a fault-block mountain in the Trans-Pecos Highlands, Texas, showing typical relief and drainage patterns.