New Mexico Meadow Jumping Mouse (Zapus hudsonius luteus) is a small (19-22 cm total length) subspecies of jumping mouse that is found in moist, tall, dense herbaceous vegetation, including grasses, sedges, rushes, and willows, in riparian areas. They currently occur in isolated populations in the San Juan, Sangre de Cristo, Jemez, and Sacramento mountains in New Mexico and the White Mountains in Arizona; they are also found at the Bosque del Apache National Wildlife Refuge along the Rio Grande in central New Mexico. Additional surveys are needed to determine their status along the Rio Chama and other sites along the Rio Grande in New Mexico. They are threatened by habitat modification, including from to drought and unregulated grazing.