Geology topics
A.G. Maddren
Publications and source records attributed to A.G. Maddren.
Lode deposits near the Nenana coal field. Gold placers near the Nenana coal field
No abstract available.
Alaska↗
Mineral resources of Alaska, report on progress of investigations in 1911--Geologic investigations along the Canada-Alaska boundary
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Bulletin↗
Mineral resources of Alaska, report on progress of investigations in 1907--The mineral resources of the Kotsina and Chitina vallets, Copper River region
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Bulletin↗