The Bolaños woodrat has pale cinnamon-colored fur and a whitish belly. Records extend from Jalisco into Zacatecas, Mexico.
The 1905 type specimen had pale cinnamon fur mixed with black dorsal hairs and a dull-white belly. Its tail was sparsely haired, black above and whitish below.
Near San Juan Capistrano in Zacatecas, specimens were collected in rocky places along the river and in a stone fence. One collected female carried one fetus.
An extinction-risk assessment has not been added yet.