Billionaire Bill Koch lists sprawling Colorado retreat for $125 million
The property, at 125 Rooney Circle, boasts a rustic main residence with 16,631 square feet with seven bedrooms and eight ...
Billionaire Bill Koch Wants $125 Million for His Aspen Compound
After selling a portion of his Elk Mountain Lodge estate in Aspen, Colo., billionaire industrialist Bill Koch is trying again ...