N.M. Stat. § 4-3A-13
Upon the effective date of this act the county of Cibola becomes the owner of all road-working and road-maintaining equipment of every kind and nature, including trucks, pickups and trailers, heretofore assigned to the county commissioner districts lying within the area segregated into Cibola county. In addition, the county of Cibola at such time shall become the owner of all real estate and improvements thereon or appurtenant thereto located within the boundaries of Cibola county, title to which is vested in the county of Valencia. The board of county commissioners of Valencia county shall execute and deliver to the proper officer or officers of Cibola county whatever instruments of transfer are necessary to vest title to all such property in the county of Cibola.
NMS § 4-3A-13