Picketing horses is a satisfactory method in suitable terrain. The area must be free of obstacles so the rope won't tangle. You will have fewer problems if you picket by a front foot rather than from the halter or neck. A half-hobble with a swivel, or snap and swivel should be used to attach the picket rope. The other end of the rope should have a loop tied with a non-slip knot so that it will rotate around the picket pin rather than wind up.
Some people make up special picket ropes which are pulled through discarded plastic garden hoses.
The hose prevents rope bums and the extra stiff ness helps keep it from tangling. The pin or stake must be driven in deep enough to stand considerable strain and must be moved frequently to protect against over grazing and trampling. Picket stakes should be removed when breaking camp. Some horsemen picket the leader of a string with the idea that the other horses won't leave the leader if turned loose. Popular camp spots, grass meadows and areas along the trails can be exposed to heavy grazing pressure throughout the season.