"Ferdinand Vandeveer Hayden (1829 - 1887) "badlands Of Dakota""Ferdinand Vandeveer HAYDEN (1829 - 1887) "Badlands of Dakota", Albumen print, size: 11.5 x 23.5 cm. (Sheet 20 x 30 cm). Probably the author's inscription under the subject: "Badlands of Dakota - Complements of FV Hayden" Some foxing and slight scratches. Badlands Territory of North Dakota crossed by Missouri (now constituting the badlands of Theodore Roosevelt National Park), characterized by a tortured relief made up of numerous peaks and buttes. The Badlands region, which stretches on both banks of the Blanche River as far as the Black Mountains, and the Renard Mountains, is a sort of betting world, a wide valley which seems to have been first dug by a huge vertical fault, then shaped by a long and incessant action of demidatory agents (sic). - (Charles-Lucien Huard Etymology (1839)  See bad and earth. This toponym was used by French Canadian trappers, the first “Europeans” to explore what is today called the badlands of North Dakota . His meaning was not that of “lands unfit for cultivation”, but of “lands bad to cross.”  He gave the English tracing “Bad Lands” (attested in 1852 in a work by paleontologist Joseph Leidy ), later abbreviated as Badlands. The term "Mauvaises Terres" was used in many American scientific works from the 1850s, through which it spread to France, along with Bad Lands The word badlands today designates the characteristic geomorphological profile of this region, in the United States and elsewhere in the world.