The Original Big Tree ; 250 feet from the stump, 335 feet long, Mammoth Grove, Calaveras County.

California Stereoscopic card.

Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who assembled it over a period of more than six decades, Robert N. Dennis (1900-1983).

Stereographs consist of two nearly identical photographs or photomechanical prints, paired to produce the illusion of a single three-dimensional image, usually when viewed through a stereoscope. Stereographs were produced from the 1850s to the 1940s, with the bulk between 1870 and 1920.

california trees redwoods forests tourism the miriam and ira d wallach division of art prints and photographs photography collection original big tree mammoth grove calaveras county lawrence houseworth publisher stereoscopic views original big tree stump mammoth grove calaveras united states big trees robert dennis collection of stereoscopic views 19th century ultra high resolution high resolution nature new york public library

1864 - 1874

New York Public Library

https://digitalcollections.nypl.org/

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