Midwest's premier ~490-acre secluded private estate, just 50 miles from Chicago's O'Hare Airport in northern McHenry County, Illinois. A visionary transformation of former farmland, with over 1M cubic yards of earth moved to create rolling hills, dramatic mounds, engineered lakes, restored prairies, mature woodlands, and park-like landscapes. 20K+ planted hardwoods, evergreens, fruit trees, and sugar maples ensure privacy, beauty, and abundant wildlife habitat. Miles of groomed multi-use trails, gravel roads, timber bridges, and gated entries with perimeter berms provide seclusion and effortless access. Championship Golf: Private 18-hole course (6,709 yards, par 72, slope 130). Innovative design with 8 premium bentgrass greens and 15 strategic tee boxes delivering 18 completely unique holes, distances, and challenges. Fine fescue fairways, deep bunkers, water hazards, sculpted mounds. Fully irrigated from the 5-acre main lake and maintained to resort standards with daily staff care since 2010. Fewer than 500 rounds annually keeps it in pristine, flawless condition. Trophy Waters: Stunning 60-ft-deep main lake + additional stocked, aerated waters offer blue-ribbon fishing for bass, walleye, northern pike, perch, and panfish. Private docks and managed habitat deliver consistent trophy action. Iconic Treetop Silo Spa: One of a kind cantilevered silo retreat-30-ft glass elevator to treetop level. Private spa with full bath, wet bar, wraparound deck for panoramic views, and signature glass floor overlooking lush botanical garden (serene water feature, fire wall, ambient music). Smart home controls for lighting, shades, media, and fire feature. Perfect for massages, relaxation, or intimate gatherings. Luxury Main Lodge (~7,000 sq ft): Elegant heavy-timber and hand-selected stone centerpiece. Dramatic 20-ft ceilings, stone fireplaces, gourmet kitchen (Viking/Subzero appliances, high-end quartzite counters), formal dining, expansive 3-season room, multiple bedroom suites. Large wraparound deck/terraces with integrated jacuzzi overlooking the lake. Full smart home integration (smartphone control of lighting, shades, media, gates, cameras, jacuzzi, waterfall, multi-zone HVAC). Finished walkout lower level with 12-ft ceilings and radiant floor heating. Italian-inspired 2,800 sq ft drive-through radiant heated garage with censored entry heating for year-round ease. Upscale Guest Cottage: Substantial secondary residence with 6 bedroom suites with private ensuites. 10-12 ft ceilings, chef's kitchen (Wolf/Subzero, quartzite counters), open living/dining, dedicated fitness facility. Screened porch, outdoor fire-pit terrace. Full smart home mirroring the lodge-ideal for family, guests, or extended private stays. Additional Improvements: Versatile agricultural barn with premium Thermador kitchen, flexible space, office, restrooms, radiant heat, loft storage, and estate-wide radio repeater. Elevated shooting pavilion (built 2018): open-air with custom chandeliers, built-in grill, climate-controlled lounge, stone fireplace; overlooks automated trap/skeet field, popular tannerite finale platform. Supporting outbuildings (southern grounds/equipment HQ, northern storage)-heated, discreet, fully operational. Year-Round Recreation: ~15 miles professionally groomed ATV/UTV trails through timber/meadows/hills (also for snowmobiling, XC skiing, hiking, biking, equestrian). Legendary sled hill (one of county's highest points) with terraced overlook/fire pit. Kayaking, paddleboarding, archery, axe throwing, wildlife viewing, snowshoeing, portable hockey rink (included). Seasonal ice activities on lakes. This fully turnkey, self-sufficient resort compound blends timeless craftsmanship with modern luxury and smart technology-perfect for intimate family retreats, large entertaining, or limited exclusive events (historically charity venue, recently open to bookings). All furnishings, equipment, and operational assets convey for seamle