Key Biscayne’s Mashta Point Will List for $60-Fricken-Million – Blockbusters – Curbed Miami Posted by 305SocialMedia.com | Sep 8, 2014 | Business | 0 | Mashta Point, originally built by William J. Matheson as his private cove and deepwater anchorage when he owned much of Key Biscayne, is hitting the market for a whopping $60… Source: www.miami.curbed.com