(October 4, 2017, 12:33 PM EDT) -- WASHINGTON, D.C. — The Ninth Circuit U.S. Court of Appeals, on remand from the U.S. Supreme Court, held again Oct. 2 that the federal government properly exercised its authority to regulate hovercraft use on rivers within conservation system units in Alaska under the Alaska National Interest Lands Conservation Act (ANILCA) (Sturgeon v. Frost, et al., No. 13-36165, 9th Cir., 2017 U.S. App. LEXIS 19020)....