New Mexico Statutes Chapter 4. Counties § 4-3A-1. Cibola county created

The county of Cibola is hereby created out of that part of Valencia county lying westerly of the following described line:

begin on the southerly boundary line of Valencia county at its intersection with the line common to ranges 3 and 4 west, N.M.P.M.; then northerly along the line between ranges 3 and 4 west to the intersection with the line common to townships 8 and 9 north; then easterly along the line between townships 8 and 9 north and along the easterly prolongation of this line to its intersection with the westerly boundary line of Bernalillo county, the point of termination.