Looks like good farmland. Average mount of rocks....
[My Little Pony] How exactly does rock farming work?
"Ah took a trip to a rock farm for the holidays, but Ah still don't have the slightest inkling what they're actually doing there. They haul a bunch o' boulders from field to field, and there were a lot of shiny crystals growing in a nearby cave, but Ah still can't figure out what use they're getting from the rocks and how pushing a bunch o' boulders around helps them at all.
Does anypony have a solid explanation for this, or should I just chalk it up as one of the great mysteries of Equestria?"
"MLP" OK.... not going to explore it any further than this.
Humm. For balance....short SciFi video "Rockfish"