MINDEN LA 15 MIN QUAD MAP USGSWATER QUALITY STATION MAP NO 49 OFFICE OF WATER DATACOORDINATION USGSLA DEPT OF TRANSPORTATION AND DEVELOPMENT QUALIFIEDPRODUCTS LIST 2 07/2/81FILE DATA LA DEPT OF TRANSPORTATION AND DEVELOPMENTNASA-AMES RESEARCH CENTER INFRA RED PHOTOS 79-164 NORTH LA1979MSHA METAL-NONMETAL MINE FILE REFERENCE 02/25/80MSHA INSPECTION INFO 9/2/81