Object class
- Microliths (stone tools)126
- Microliths (tool components)124
- Midden samples217
- Middle Rio Grande pottery tradition (1220–present)28
- Middle-Southern Rio Grande Glaze Ware (1275–1720 AD)4
- Milagros (ex-votos)63
- Milk bottles2
- Milled lumber93
- Mills (buildings)1
- Millstones (equipment components)11
- Mimbres6
- Mimbres black-on-white1
- Mimbres pottery styles6
- Mineral and rock samples3,983
- Minerva31
- Miniature (size attribute)1,801
- Mint sets (coins)61
- Mirrors114
- Mittens (handwear)45
- Mixed media works8