N.M. Stat. § 42-13-5
Posting of notice.
Operators, owners, trainers and promoters of equine activities or equine facilities,
including but not limited to stables, clubhouses, ponyride strings, fairs and arenas, and
persons engaged in instructing or renting equine animals shall post clearly visible signs
at one or more prominent locations that shall include a warning regarding the inherent
risks of the equine activity and the limitations on liability of the operator, owner, trainer
or promoter.