ATV on property Colorado

[Stephen Craul]

My lease for my mountain rental property states NO ATV on the property. Just curious as my tenant candidate moving in 10/1 uses an ATV with plow to clear the driveway for snow removal. Would this be an issue with my home owners policy? Or if leases use this to protect property from erosion, or if tenant killed from ATV accident, would the homeowner be sued because driveway too steep and contributed to rollover etc., or should I add into lease that landlord NOT responsible for any injuries/death with ATV on property?

Thanks in advance

Stephen