EMBRACE THE EXTRAORDINARY! Welcome to "Castle Rock", a hidden gem nestled above spectacular Flathead Lake, in breathtaking Bigfork Montana. This cherished estate offers spectacular 180 degree views of the mountains of Whitefish, unforgettable Flathead Lake and the eastern valley slopes to Polson, creating a serene and picturesque retreat. Perched upon 23 beautifully parked out, timbered acres, at the end of a privately maintained, paved road. A perfect blend of seclusion and convenience with easy access to every amenity within the robust Flathead and Mission Valleys. This is not a passerby's location. Private road closure, plus two electric, custom entrances with massive, fortress-style, rock-accented pillars rim each of the two gated entrances. This magnificent property spans an impressive 14,256 square feet, masterfully designed to accommodate comfortable, multi-generational living for up to four families. The main home of 11,202 SF features... 9 bathrooms, 5 large bedrooms, office w/custom built-ins, large indoor gym, three fireplaces, two game rooms, formal dining, grand living room w/T&G vaulted ceilings and an attached guest apartment with elegant Montana accents throughout. Quality was not spared. The heart of the home exudes an inviting atmosphere. The kitchen boasts high-end appliances and granite countertops. The elevator, (2) radiant floor-heated 2-car garages, A/C, whole house air exchange, multi electric and backup propane gas, forced-air heat systems, 150 KW propane gas back-up power plant are a testimony to the exquisite vision this property captures. A companion dwelling within the gated retreat includes a 50x60 radiant floor-heated shop, 20 foot ceilings, three 16x16 overhead doors, built-in cabinets, built-in air compressor system, painted floors, mechanical room and a half bath, partially built into the mountain for greater thermal dynamics, and built to perfection for your various needs and hobbies. Above this structure are two guest apartments, each 2BR/2BA/1547 SF matching the main home estate design, inside and out. Discover seamless indoor-outdoor living with expansive windows creating a mesmerizing backdrop. As night falls, witness the awe-inspiring display of stars in the dark sky, adding a touch of magic to your evenings. Step outside to inviting balconies and walkout basement patios with captivating stone accented concrete walls and endless views. Entertaining will be a delight with surrounding peaceful landscaped gardens. Immense privacy and potential exploration exists upon the bordering government land. Many hundreds of acres out your back door, ready for your adventure. An undeveloped, year round spring exists, great for animals and livestock. Rock outcroppings are ready for your continued harvest of landscape stone. A massive 40 gallon per minute water well of pristine, ample enjoyment. More exciting details exist. A feature list is available upon request. Previews are by appointment only. Agent must accompany all showings. Listed by David Passieri.