Bucolic Ranch is a uncommon Land — Desert card from Outlaws of Thunder Junction (OTJ), collector number 265. Current market price: $0.20 (foil $0.21), TCGplayer market prices via Scryfall.
{T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Mount spell. {3}, {T}: Look at the top card of your library. If it's a Mount card, you may reveal it and put it into your hand. If you don't put it into your hand, you may put it on the bottom of your library.