Old Map of East Hampton, New York by USGS, 1921 – Sag Harbor, Southampton & Gardiner's Bay

Published in 1921, the United States Geological Survey’s “Easthampton” presents the eastern reaches of Long Island at a moment when The Hamptons were emerging from rural maritime communities into one of America’s most coveted resort landscapes. Drawn at the authoritative 1:62,500 scale, the map captures East Hampton, Sag Harbor, Southampton, Gardiner’s Bay, and the Atlantic shoreline with the measured precision that made USGS topographic mapping indispensable. Its title preserves the older spelling “Easthampton,” lending the sheet a period character that speaks to local naming conventions and early twentieth-century cartographic practice. Here, an area now synonymous with summer estates, beaches, and cultural glamour appears through the disciplined language of contours, roads, waterways, and settlement patterns.

The United States Geological Survey was founded in 1879 to classify public lands, examine geological structures, and create reliable national maps for scientific, governmental, and practical use. By the early twentieth century, its topographical sheets had become essential tools for engineers, planners, conservationists, travelers, and local authorities. This map exemplifies the USGS commitment to accuracy: elevation is expressed through fine contour lines, water features are carefully delineated, and the relationship between settlements, roads, shorelines, and terrain is made immediately legible. Rather than presenting The Hamptons as a fashionable abstraction, the map reveals the underlying geography that shaped its development—its sandy margins, bays, low hills, wetlands, village centers, and the routes connecting them.

East Hampton occupies a privileged place on the map, situated between the sheltering waters of Gardiner’s Bay and the open expanse of the Atlantic Ocean. Its geography has long defined its identity: fertile inland tracts, ocean beaches, fishing grounds, and protected harbors all contributed to its early economy and later appeal as a retreat for artists, writers, and affluent summer residents. Sag Harbor, shown to the northwest, evokes an older maritime history, having been a prominent whaling port in the eighteenth and nineteenth centuries. Southampton, farther west, anchors another strand of the region’s story, combining colonial settlement, agricultural land, and the beginnings of leisure-driven coastal development.

The map’s classic topographic style gives particular pleasure to the eye. Contour lines move across the sheet with quiet delicacy, describing subtle shifts in elevation across a landscape more nuanced than dramatic. In coastal Long Island, where relief is generally gentle, these lines are especially valuable: they distinguish dunes, low ridges, depressions, and watersheds that might otherwise disappear in a purely political or road map. The Atlantic coastline, bays, inlets, ponds, and waterfronts are rendered as structural elements of the region rather than mere scenery. Roads and pathways thread between villages and shorelines, suggesting patterns of movement before the automobile age had fully transformed the social geography of The Hamptons.

As a 1921 portrait of East Hampton and its surroundings, this map offers a compelling record of a landscape on the cusp of profound change. It predates much of the dense residential and commercial expansion that would later define the region, allowing the viewer to trace older relationships among land, water, settlement, and access. The presence of villages, roads, coastal features, and open terrain invites comparison with today’s highly developed Hamptons, where historic hamlets and preserved shorelines coexist with renowned estates and resort culture. More than a utilitarian survey, “Easthampton” is a refined geographic document of Long Island’s East End before modern fame fully remade its physical and cultural identity.

Cities, towns and places on this map

• East Hampton
• Sag Harbor
• Southampton
• Gardiner's Bay
• Atlantic Ocean
• Various roads and pathways
• Local landmarks and waterfronts

Historical context & cartographic details

• Produced by the United States Geological Survey (USGS), this historical topographical map is dated 1921.
• The map is at a scale of 1:62,500 and shows East Hampton, The Hamptons, and the surrounding area in New York.
• The USGS is known for detailed and accurate topographical mapping used in land use planning, resource management, and environmental assessment.
• The map uses a classic topographic style with contour lines to show elevation changes.
• It depicts lakes, coastline, natural features, and developed landscapes around East Hampton and the Atlantic Ocean.
• The map reflects East Hampton in the early 20th century, offering insight into historical land use and geographic change in an area that later saw significant residential and commercial growth.

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