Perched atop the ridge line of the Mayacama Mountains, this spectacular 99.73-acre parcel offers sweeping westward views across the Santa Rosa Plain to the ocean and the Sonoma Mountains beyond. Renowned for its breathtaking sunsets, the property provides an extraordinary setting for a world-class wine country estate. A stunning building envelope is ready for development, with the seller having completed extensive due diligence, including plans for a 5-bedroom residence. Improvements and reports include engineered septic plans, grading permits, water yield certification from a prolific 80 GPM well and 65,000 gallon steel holding tank, underground high voltage power to the building and well site, geotechnical and storm drainage reports, survey, fire mitigation review, and detailed site plans. Infrastructure is already in place, featuring an active well, holding tank, electricity on site, and a graded driveway that winds gracefully along the ridge to the building site. The property also boasts a meticulously maintained 21.8-acre vineyard, with 17 acres of Cabernet Sauvignon, 3.5 acres of Malbec, and 1.38 acres of Cabernet Franc. Vines are well established, with plantings from 2013-2014. An exceptional opportunity to create the ultimate wine country estate or a sprawling ranch with premium vineyard assets in a truly awe-inspiring setting.