The American West at the dawn of the last century and the last quarter of the one before. Painted by Englishman Thomas Moran (1837-1926). Member of the Hudson River School.

"Shoshone Falls on the Snake River." 1900.
“Shoshone Falls on the Snake River.” 1900. Oil on canvas. Image ©Gilcrease Museum. Artwork in the public domain in the United States because the artist has been dead over 70 years. via https://collections.gilcrease.org/object/01262339
"The great blue spring of the Lower geyser basin, Yellowstone." ca. 1875.
“The great blue spring of the Lower geyser basin, Yellowstone.” ca. 1875. Chromolithograph published by L. Prang and Company. Collection of the Library of Congress http://www.LOC.gov ID 94515827. In the public domain due to age. via https://www.loc.gov/item/94515827/
"Yellowstone Lake." ca. 1875.
“Yellowstone Lake.” ca. 1875. Chromolithgraph. L. Prang and Company, Lithographer. Collection of the Library of Congress http://www.LOC.gov IDpga.12036. In the public domain due to age. via https://www.loc.gov/resource/pga.12036/
"Castle Geyser, Yellowstone." 1874.
“Castle Geyser, Yellowstone.” 1874. Chromolithograph by L. Prang and Company. Collection of the Beinecke Library, Yale University, New Haven. Artwork in the public domain in the United States because the artist has been dead over 70 years. via https://en.wikipedia.org/wiki/File:Castle_Geyser,_Yellowstone,_1874.jpg
"The Golden Hour." 1875.
“The Golden Hour.” 1875. Oil on canvas. Collection of the Blanton Museum of Art, University of Texas at Austin. In the public domain in the United States because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:Thomas_Moran_-_The_Golden_Hour_-_Google_Art_Project.jpg

Seldom seen landscapes by early African American artist Robert Seldon Duncanson (1821-1872). Well known in his time but then forgotten. Self taught but considered a second generation of the Hudson River School which explains their bucolic serenity.

"Scots Highlands." ca. 1848-52.
“Scots Highlands.” ca. 1848-52. Oil on canvas. Collection of the Smithsonian American Art Museum. In the public domain in the United States because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:RobertDuncanson-Scotch_Highlands_c1848_1852.jpg.
"Mount Oxford." mid 19th c.
“Mount Oxford.” mid 19th c. Oil on canvas. In the public domain in the United States because it was painted before 1923. via https://it.m.wikipedia.org/wiki/File:Robert_Scott_Duncanson,_Mount_Oxford.jpg
"Loch Long." 1865.
“Loch Long.” 1865. Oil on canvas. Collection of the Smithsonian Art Museum. Cc 0 license. via https://www.wikidata.org/wiki/Q20487956
"Land of the Lotos Eaters." 1861.
“Land of the Lotos Eaters.” 1861. Oil on canvas. Swedish Royal Collection, Stockholm. In the public domain in the United States because it was painted before 1923. via https://commons.wikimedia.org/wiki/File:Robert_Duncanson_-_Land_of_the_Lotos_Eaters.JPG.
"Woodland Stream, an Idyll." ca. 1865.
“Woodland Stream, an Idyll.” ca. 1865. Collection of the High Museum of Art, Atlanta. In the public domain in the United States because the artist has been dead over 70 years. via https://commons.wikimedia.org/wiki/File:Woodland_Stream,_an_Idyll_by_Robert_S._Duncanson,_c._1865,_High_Museum_of_Art.jpg.