Keystone in Pennington County, South Dakota — The American Midwest (Upper Plains)

Dr. E. L. Trudeau

1845-1915

— by Gutzon Borglum —

Dr. E. L. Trudeau Marker image. Click for full size.

Photographed by William Fischer, Jr., September 17, 2026

1. Dr. E. L. Trudeau Marker

Inscription.

Tuberculosis Specialist.
Memorial in the Sanitorium District
in Trudeau, NY

Erected by Rushmore Borglum Story Museum.

Topics. This historical marker is listed in these topic lists: Arts, Letters, Music • Environment • Science & Medicine. A significant historical year for this entry is 1873.

Location. 43° 53.445′ N, 103° 25.629′ W. Marker is in Keystone, South Dakota, in Pennington County. It is on Winter Street (U.S. 16A), on the left when traveling south. Marker and statue are near the Rushmore Borglum Story museum entrance. Touch for map. Marker is at or near this postal address: 342 Winter Street, Keystone SD 57751, United States of America. Touch for directions.

Regionally, this marker is in West River,

in the Badlands,

and in Greater Rapid City.

It is also in the American Black Hills,

in the Lewis & Clark Corridor,

on the prairies,

and on the Northern Plains.

Globally, it is in North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once Rupert’s Land

and also the Louisiana Purchase.

Other nearby markers. At least 8 other

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markers are within walking distance of this marker: William Jennings Bryan (here, next to this marker); The Seated Lincoln (here, next to this marker); Flooded with Memories (within shouting distance of this marker); Purchasing The Slaves' Freedom (within shouting distance of this marker); Gutzon Borglum (within shouting distance of this marker); Carrie Ingalls Swanzey (approx. 0.2 miles away); 1972 Battle Creek Flood (approx. 0.2 miles away); The Black Hills Central Railroad (approx. 0.2 miles away). Touch for a list and map of all markers in Keystone.

Also see . . .
1. Rushmore Borglum Story. (Submitted on October 1, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio.)
2. Trudeau Institute History. (Submitted on October 1, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio.)

Dr. E. L. Trudeau Statue and Marker image. Click for full size.

Photographed by William Fischer, Jr., September 17, 2026

2. Dr. E. L. Trudeau Statue and Marker

Photographed by William Fischer, Jr., September 21, 2026

3. Dr. E. L. Trudeau Statue and Marker

Near center of photo

Credits. This page was last revised on October 1, 2026. It was originally submitted on October 1, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio. This page has been viewed 4 times since then. Photos: 1, 2, 3. submitted on October 1, 2026, by William Fischer, Jr. of Reynoldsburg, Ohio.