| General | | Number of titles | 25 | | Number of microfiches | 522 |  | | (sub) Artic | | Number of titles | 102 | | Number of microfiches | 606 | | | Northeastern Woodlands | | Number of titles | 8 | | Number of microfiches | 470 | | | Northwest Coast | | Number of titles | 33 | | Number of microfiches | 338 | | | Great Basin/ Rocky Mountains/ California | | Number of titles | 13 | | Number of microfiches | 116 | | | Southeast/ Southwest | | Number of titles | 8 | | Number of microfiches | 54 | |
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