Photographs of historical mining operations in Colorado and Utah
收藏DataONE2016-10-29 更新2024-06-26 收录
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资源简介：
A collection of photographs of mine sites, mining operations, and tailings taken prior to 1980 at a variety of sites throughout Colorado and Utah.
A database of photograph metadata is provided to contain the subject and location of each photograph.
创建时间：
2016-10-29
