In many locations, you will discover already tamed horses with saddles on them. They can help you see the terrain better due to increased elevation but their movement at best equals your sprint while on foot. You must watch your mount's stamina and let them rest occasionally. Saddled horses are always named. At this point in the game, they cannot leave their home biome. No saddled horses are available in Pestilentia, the Starting Facility, Eagle's Nest and Kitsune's Den. Horses are not identical--they can have different statistics (like stamina).

Locations & Names of Horses: