1056 Twin City Power, 350 U.S. 222, 225 (1956); accord United States v. Certain Parcels in Valdez, 666 F.2d 1236, 1238 (9th Cir. 1982).1057 United States v. Va. Elec. & Power Co., 365 U.S. 624, 628 (1961). Federal courts have used the terms high-water mark and ordinary high-watermark interchangeably in describing the boundary of the federal navigational servitude. Banks v. United States, 71 Fed. Cl. 501, 506 (2006) (noting both terms “refer to the same boundary” despite “any distinction in nomenclature” and citing cases).