Hitch

The  is a gameplay item found in Red Dead Redemption. Typically found in towns it is a place to tether your stead while going about on foot.

Characteristics
When hitched your horse will stay attached throughout your stay in town until you whistle for him our go to sleep.

There is also anecdotal evidence to siggest hitching your horse seems to trigger events like the posting of Wanted Posters, triggering fame building mini challenges (like catch a thief) and spawning the nun who gifts the Obscuridad del Santo Andres.

The hitch is also a nice place to look first when you seek to steal a horse.

Locations
Hitches can be found in towns near telegraph offices, sheriffs buildings, train stations, living quarters and outside the entrances to compounds like El Presidio and Las Hermanas.