Historic Maps of the Porcupine Gold Fields
收藏DataONE2018-02-14 更新2024-06-25 收录
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资源简介：
A series of maps pulled from Ontario Bureau of Mines reports. Used by author for historic analysis, overlay, and comparison. See: http://www.arcgis.com/apps/View/index.html?appid=053c6c8abc224bea8be64a4b8a44a8e0 Source: Ontario Bureau of Mines Annual Reports, available via Geology Ontario (http://www.geologyontario.mndmf.gov.on.ca/index.html) Maps show claim boundaries, townships, geological features, transportation infrastructure, waterways, and major landmarks.
创建时间：
2023-12-28
