| 介绍（中） | 乔治·惠勒中尉是西点军校毕业的工程师，他想为爱达荷州和犹他州的军队找到一条内陆通道，向南到达亚利桑那州。1871年，他受美国第四次测量局委托，绘制该地区的地形图，以便于战略过境和未来定居。在最初的科学家队伍中，惠勒加入了波士顿一个显赫家族的儿子，在东方媒体上宣传这次探险，蒂莫西·奥沙利文则提供了视觉记录
由于奥沙利文在这一领域的经验与他在内战期间作为摄影师的工作是无与伦比的，因此，惠勒从一开始就对他抱有极大的信心，为他提供了一个巡回委员会，并在科罗拉多河上建造了一艘自己的船，这并不奇怪。尽管惠勒的船进展缓慢（他们必须划船、航行，并逆流而上），但奥沙利文的船还是拖得更慢。他在船上探索峡谷惊人的摄影可能性，"Picture"，他蜿蜒而行，用钉子钉住，停下来，研究如何利用阳光和阴影，陡峭的悬崖，以及它们在水中的倒影和天空中的轮廓
黑峡谷照片的分辨率非常高。按照顺序，它们构成了一个善于思考、有远见的艺术家的形象之旅，他知道如何协调自己的地方体验。当人们翻开专辑的书页时，河流和悬崖的视角在庄严的行进中发生了变化，就像一幅立体画一样，它们将观众带到了峡谷的深处，惠勒写道，在那里，"像死亡一样的寂静创造了令人敬畏的印象。"
这张照片出现在奥沙利文的35张照片集中，题为"与第100子午线以西的地理和地质勘探和测量相关的美国西部地区部分景观、地质和其他特征照片"。1871年的季节。"
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| 介绍（英） | An engineer graduated from West Point, Lieutenant George Wheeler wanted to find inland passage for troops from Idaho and Utah southward to Arizona. In 1871 he was commissioned with the fourth U.S. Survey to map the topography of that region in view of strategic transit and future settlement. To his original corps of scientists Wheeler added the son of a prominent Boston family, to publicize the expedition in the Eastern press, and Timothy O'Sullivan, to provide a visual record.
As O'Sullivan's experience in the field was unequaled from his work as a photographer during the Civil War, it is not surprising that Wheeler placed great confidence in him from the outset, providing him with a roving commission and a boat of his own on the Colorado River. Although Wheeler's boats progressed slowly (they had to be rowed, sailed, and hauled upriver against the current), O'Sullivan's was tardier still. Exploring the astonishing photographic possibilities of the canyons from his boat, "Picture," he meandered, tacked, and stopped as he studied how to turn to advantage the sun and shade, the sheer cliffs, and their reflection in the water and profile against the sky.
Individually, the Black Canyon photographs have exquisite resolution. In sequence, they constitute the pictorial voyage of a reflective, visionary artist who knew how to orchestrate his experience of place. As one turns the pages of the album, the shifting perspectives of river and cliff move in stately progression as, effectively as a diorama, they carry the viewer deep into the very heart of the canyon, where, Wheeler wrote, "a stillness like death creates impressions of awe."
This photograph appears in an album of thirty-five photographs by O'Sullivan entitled "Photographs Showing Landscapes, Geological and Other Features of Portions of the Western Territory of the United States Obtained in Connection with Geographical and Geological Explorations and Surveys West of the 100th Meridian. Season of 1871."
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