+SERIES 1 BLACK HILLS NATIONAL FOREST
+SERIES 2 COLORADO
+SERIES 3 TRESPASS CASES
+SERIES 4 WHITE PINE BLISTER RUST
+SERIES 5 WORK DIARIES
+SERIES 6 FOREST SERVICE REFERENCE MATERIAL
+SERIES 7 ORAL HISTORIES
+SERIES 8 OVERSIZE
+SERIES 9 PHOTOGRAPHS