Photographs Showing Change in Riparian Vegetation in the Grand Canyon, 1889, 1991, 2010 and other years
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The viewpoints were first photographed by Stanton in 1889, and then re-photographed in about 1991, 2010 and sometimes other years. This set of photos focuses on...
这批取景点位（viewpoints）最早由斯坦顿于1889年完成拍摄，随后分别于1991年、2010年及其他部分年份进行了重拍。该组照片聚焦于……
