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Eleanor Roosevelt National Historic Site is one of three national historic sites along the Hudson River Valley in Hyde Park, Dutchess County, New York, managed together as Roosevelt-Vanderbilt:
| Site | Established | Size | Preserves |
|---|---|---|---|
| Eleanor Roosevelt NHS | May 26, 1977 | about 73 ha (180 acres) | Val-Kill Cottage — built as a factory for Val-Kill Industries, made a home in 1937, and used by the First Lady as her retreat, office and a "laboratory" for social change |
| Home of Franklin D. Roosevelt NHS | January 16, 1944 | nearly 344 ha (850 acres) | the birthplace and home of the 32nd president, and the first U.S. presidential library; Franklin and Eleanor Roosevelt are buried together in the Rose Garden |
| Vanderbilt Mansion NHS | December 18, 1940 | about 85 ha (210 acres) | the Beaux-Arts mansion of Frederick W. Vanderbilt, grandson of Cornelius Vanderbilt, with its grounds, gardens and Hudson River views |
Stone Cottage. Image from the National Park Service's page
The rocks
The three sites lie in the Valley and Ridge province of eastern New York, on bedrock made entirely of Ordovician sedimentary and metasedimentary rock:
| Formation | Where | Rock |
|---|---|---|
| Austin Glen Formation | under the Home of Franklin D. Roosevelt and Vanderbilt Mansion, and also at Val-Kill | greywacke, turbidites, shale (mudstone) and sandstone — the rock that holds up the scenic bluffs above the Hudson |
| Stuyvesant Falls Formation | the eastern part of the Eleanor Roosevelt site, near Top Cottage | siltstone, silty dolostone and quartzite |
Ice Age
During the Pleistocene, glaciers advanced and retreated across New York, planing down the land and leaving loose glacial till over the bedrock — which gives the sites their rolling hills and low ridges.
Maps and reports
The NPS Geologic Resources Inventory products for the site are in the NPS DataStore, along with a completed Soil Resources Inventory. The regional story is in the NPS guide to the Valley and Ridge province.
Sources
Based on "NPS Geodiversity Atlas—Eleanor Roosevelt National Historic Site, New York," National Park Service, citing NPS (2017); a work of the United States government in the public domain.
Licens: CC0 1.0 (offentligt eje) · Bearbejdet efter www.nps.gov
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