Tucked inside one of Mountain Springs Ranch's best-kept secrets, 1888 Split Mountain offers a rare combination of privacy, craftsmanship, and everyday livability. Located in a small gated enclave that many don't even realize exists, this impeccably maintained single-story home has been lovingly cared for by its original owners and showcases quality construction throughout.    Designed for both comfortable living and effortless entertaining, the thoughtfully planned floor plan features spacious secondary bedroom suites, each with its own walk-in closet and private bath, while the expansive master retreat offers a generous walk-in closet and a versatile adjoining room ideal for a private fitness studio, home office, nursery, or sitting room.    Step outside to a backyard that feels like a private resort. Mature trees create exceptional privacy around the sparkling pool and expansive outdoor kitchen, providing the perfect setting for weekend gatherings or quiet evenings at home.     Adding to its long-term value and efficiency is a geothermal heating and cooling system-a premium feature rarely found in residential homes. Seller is open to owner financing while buyer waits for rates to drop.