Edward H. Cobb compiled and annotated the Index of Metallic Mineral Deposits of Alaska from Published Reports of Federal and State Agencies through 1972. Arranged by quadrangle, this index is invaluable for locating published geological literature of Alaska by location, such as name of creek.

The index is well known to librarians and library users as “Cobb’s Index.” In the ARLIS Library Catalog, the index is the first result returned by a keyword search on Cobb metallic mineral state federal.

Paper copies of Cobb’s Index are maintained in Special Collections at ARLIS, call number Spec QE 76 .I64 v. 1 – v.6. The Index is also available as a large (62 megabyte) download from the ARLIS website.