A 19th-Century Image Reexamined
A stereoscopic photograph taken on Mount Washington during the winter of 1870–1871 is being described as the oldest known photograph associated with a UFO claim. The image, titled Frost Architecture, shows a dark, elongated form set against a landscape covered in ice and frost. Its cigar-like appearance has prompted renewed interest from UFO researchers, although the photograph itself does not establish that the object was an extraterrestrial craft.
The image was produced by Amos Franklin Clough and Howard Algernon Kimball, photographers from Concord, New Hampshire, who joined a scientific expedition to Mount Washington. Their work documented the mountain’s summit, surrounding terrain and severe winter conditions. The photograph was later included in the series Views Taken on the Summit of Mt. Washington During the Winter of 1870–71, which was copyrighted in 1871.
The Photographers and Expedition
Clough, born in 1833, had already gained experience in extreme mountain environments after participating in a winter expedition to Mount Moosilauke in 1869–1870. Kimball, born in 1845, came from a family of photographers and worked in his father’s Concord photography business.
In October 1870, Kimball applied to join the Mount Washington scientific expedition. Clough had already been designated as its photographer, but both men ultimately participated in the winter program. They worked alongside other members of what was identified as the Mount Washington Scientific Corps, including J. H. Huntington, S. A. Nelson and Sgt. Theodore Smith.
Their assignment involved more than scenic photography. The expedition documented the mountain’s unusual atmospheric and environmental conditions, including the dramatic formations created when moisture froze onto exposed surfaces. The resulting stereographs offered viewers an early form of three-dimensional imagery and were marketed as part of a broader visual record of winter on the summit.
The Object in “Frost Architecture”
The photograph at the center of the modern discussion appears on a stereoscopic card titled Frost Architecture. In the scene, a dark, horizontally oriented object is visible above or beyond the frost-covered terrain. When the two views of the stereograph are alternated, the object remains apparent, giving the impression that it was present in the original scene rather than added to only one exposure.
That detail has led some commentators to characterize the image as a possible photograph of an unidentified flying object. However, the historical material provided does not include a written account from Clough or Kimball identifying the object, describing its movement or claiming that it was airborne. The photographers’ documented purpose was to record frost formations and mountain conditions, not unexplained aerial phenomena.
Historical Significance and Limitations
The image’s importance rests partly on its age and provenance. Unlike many later UFO photographs, Frost Architecture was created during a documented scientific expedition and incorporated into a commercially issued photographic series. The 1871 copyright date provides a firm early date for the image, making it a notable artifact in the history of anomalous photography.
At the same time, the photograph’s interpretation remains unresolved. Possible explanations could include a distant natural feature, equipment or material associated with the expedition, an optical or photographic artifact, or an object that was genuinely airborne. The available source material does not provide enough information to distinguish among those possibilities.
Whether or not the object represents a UFO in the modern sense, the Clough-Kimball stereograph offers a rare glimpse into 19th-century scientific photography and the harsh conditions faced by observers on Mount Washington. It is best understood as an exceptionally early image of an unidentified form—one whose visual ambiguity continues to invite debate more than 150 years after it was recorded.
