Every edition of the U.S. Geological Survey’s map of Mountain Dale. Tap a year, or press play to watch the town change.
1909Monticello sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Mountain Dale.
Mountaindale changed drastically in character from a rural farming hamlet, beginning with the arrival of the New York, Ontario & Western Railroad, and the name change of the local post office, in December 1880, from Sandburg(h) to Mountain Dale. Around that time a number of farmhouses that were more hotels than farms opened, and beginning in 1899 the ethnic character of the area began to change from predominantly gentile to predominantly Jewish.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikipedia and U.S. Geological Survey historical maps. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.