BLM (Bureau of Land Management) maps (1:100,000) are filed by state in map case 11, drawer 11-14. BLM maps appear in two series:

surface management status
surface-minerals management status

Intermediate Scale Map Series (1:100,000) are indexed on CD-ROM and in paper copy in the basement. See the: Monthly Catalog of U.S. Government Publications.

NOTE: Recent issues of the Monthly Catalog of U.S. Government Publications are searchable via the Internet.