Going up to a friends cabin next week. 5.5 acres of land next to a mountain side. Thought i might bring my pistols and shotgun and a rifle up there to shoot around. He says he does it with a .22lr. What are some safety considerations when shooting in wooded areas ('backyard shooting") he says it is very isolated area where the neighbors are no where in sight. Im a city boy so i only shoot at ranges. any help would be appreciated.