"View looking into a deep crevice on the east side showing sliding ground on forebay slope to the right." - NARA - 294304.jpg
en
"View looking into a deep crevice on the east side showing sliding ground on forebay slope to the right." NARA 294304, Construction of the Grand Coulee Dam, US National Archives series: Photograph albums, compiled 1903 - 1972, Images from the National Archives and Records Administration, US National Archives location: other, "View looking into a deep crevice on the east side showing sliding ground on forebay slope to the right."
commons
ja
「右側の前方斜面に、斜面を摺り込んでいる様子を、東側の深い堤を眺める図」NARA 294304、グランドクーリーダムの建設、米国国立公文書館シリーズ:写真アルバム、1903-1972、米国国立公文書記録管理局の画像、米国国立公文書館の位置:他の「右側のフォーベー斜面の滑り台を示す東側の深いクレバイスを見ている」。
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crevice