Even though the ushighlands.com website is down right now there is a popular service called the Wayback Machine which takes snapshots of websites from time to time.
Here is their snapshot of ushighlands.com on September 30th 2017 ...
Now on that page scroll the whole way to the bottom. You will see a green Twitter account button on that snapshot page. That Twitter Account button points to ...
To make that clear. The same person who owns ushighlands.com listed their official twitter account as https://twitter.com/USHighlandsinc on the website. And the person who set up the ushighlands.com domain was Sal. Case closed.