Helfrich Map Collection Box 1 Boxes 12 and 13 - Oregon Box 2  Boxes 14 and 15 - California Box 3 Boxes 16 and 17 - Nevada Box 4 Box 18 - Wyoming Box 5 Box 19 - Idaho Box 6 Box 20 - Utah and Colorado Box 7 Box 21 - Kansas, Nebraska, Arkansas, and Missiouri Box 8 Box 22 - National Forests Box 9 Box 23 - Western Trails and Emmigrant Routes Box 10 Box 24 - Misc. Box 11 - Klamath County COLLECTIONS INDEX ::-:: MAP COLLECTIONS