Near Reva in Harding County, South Dakota — The American Midwest (Upper Plains)

The Castles

Photographed by Connor Olson, August 14, 2018

1. The Castles Marker

Inscription. The Castles
Administered by the Forest Service
United States Department of Agriculture
has been designated a

Registered Natural Landmark

This site possesses exceptional value as an illustration of the nation's natural heritage and contributes to a better understanding of man's environment

1979

Heritage Conservation and Recreation Service
United States Department of the Interior

Erected 1979 by Heritage Conservation and Recreation Service, United States Department of the Interior.

Topics and series. This historical marker is listed in this topic list: Environment. In addition, it is included in the National Natural Landmarks series list. A significant historical year for this entry is 1979.

Location. 45° 31.443′ N, 103° 10.425′ W. Marker is near Reva, South Dakota, in Harding County. It can be reached from Forest Road 31261 0.2 miles south of Forest Road 3126. Accessed through the Reva Gap Campground. Touch for map. Marker is in this post office area: Reva SD 57651, United States of America. Touch for directions.

Regionally, this marker is in the Standing Rock Sioux Tribe

and in West

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River.

It is also in the American 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 one other marker is within 3 miles of this marker, measured as the crow flies: Battle of Slim Buttes (approx. 2.7 miles away).

Also see . . . Castles National Landmark. (Submitted on August 17, 2020, by Connor Olson of Menomonee Falls, Wisconsin.)

The Castles Marker, with the Castles in the background image. Click for full size.

Photographed by Connor Olson, August 14, 2018

2. The Castles Marker, with the Castles in the background

Credits. This page was last revised on August 17, 2020. It was originally submitted on August 17, 2020, by Connor Olson of Menomonee Falls, Wisconsin. This page has been viewed 796 times since then and 48 times this year. Photos: 1, 2. submitted on August 17, 2020, by Connor Olson of Menomonee Falls, Wisconsin. • Mark Hilton was the editor who published this page.