Mont. Code Ann. § 37-47-401

It is recognized that some activities conducted by outfitters, guides, and outfitter's assistants within the scope of their authorized services are inherently hazardous to participants regardless of all feasible safety measures that may be taken. It is the purpose of this part, subject to 27-1-753, to define those areas of responsibility and affirmative acts or omissions for which outfitters, guides, and outfitter's assistants are liable for loss, damage, or injury and those risks for which the participant expressly assumes or is considered to have voluntarily assumed the risk of loss or damage.