Rare 6.5+ acre homesite in Mystic Shores Unit 6 offering privacy, elevation, and Hill Country character. Lot 668 is designated as a Combination Lot under Unit 6 DCCRs, allowing residential use with long-term flexibility. The front of the property features natural slope creating separation from the street, while interior elevations provide potential build sites with expansive Hill Country views. A seasonal natural spring adds landscape interest and native charm. Located in FEMA Zone X - Area of Minimal Flood Hazard HOA architectural standards require a minimum 1,800 SF main residence with masonry and metal roof guidelines, helping protect long-term value. Septic, water, and electricity required. Ideal for custom home build, multi-generational estate, or private Hill Country retreat.