The phrase 'horses at pasture' simply means that they are out in a grassy area (such as a paddock) eating grass or feeding. Sometimes it may also mean a horse is retired in a paddock. :)
Yes, horses can live in down hill pastures. On one consition.... if you trip of find your self slipping or feeling like your on a cliff it will not be OK. Sometimes your horse will just have fun and...
Go into the pasture, shutting the gate behind you, with halter and lead line behind your back, or low at your side. (As long as it is in an inconspicuous place, not easily seen by the horse.) If it...
Horses are found in pastures because they are forage animals. Grass is their primary diet, so people choose to keep them there where they can eat at will.