Chopper Hunts Into Landlocked Public Land

[MtnW]

Any western outfitters or freelance helicopter companies offering helicopter access services for hunters wanting to access land locked public land blocked by private land owners? Have always thought about this , and now reading several hunters are successfully doing these types of chopper hunts. Does anyone know the many restrictions involved in doing this type of helicopter access hunts and what western states where it is not illegal? I read where Montana has a law similar to Alaska of no hunting for 24 hours from a flight.