Preliminary geologic and vein maps of part of the Central City district, Gilpin and Clear Creek Counties, Colorado
Explore the source record for details and available documents.
Open-File Report↗
Geology topics
Avery Ala Drake
Publications and source records attributed to Avery Ala Drake.
Preliminary geologic and vein maps of part of the Central City district, Gilpin and Clear Creek Counties, Colorado
Explore the source record for details and available documents.
Colorado↗