Unique Colorado Mansion Deemed "A True First" by Premier Builder Heads to Luxury Auction®

KEYSTONE, Colo., Sept. 15, 2025 /PRNewswire/ -- A unique, mountaintop mansion in Colorado that has been seeking $18 million while under construction is now being offered to the highest bidder in a luxury auction® scheduled for September 25, 2025. The no-reserve auction is being managed by...