RIo Seco horse Boarding and stables (formally LaPlata River Stables.) A beautiful 42 acre site, can accommodate all of your horses needs, short and long term boarding, full service boarding, self care boarding, layover are available. Highlights of Rio Seco horse boarding stables are: Round pen, Horse Transport available, outdoor arena, 8 stall barn with runs, access to BLM land for trail riding without having to haul your horse. Individual turn outs, horses for sale, Located 10 minutes from the city of Farmington.