Abstract: An anchor cleat for securing an anchor line comprising an elongated base, a one-way jamming cleat mounted on the base, and a skene chock mounted on the base adjacent a jamming end of the jamming cleat. The skene chock is preferably spaced sufficiently from the jamming end of the jamming groove to allow the anchor line to disengage from the jamming groove when the anchor line is inclined above the jamming groove at an angle of less than 25 degrees relative to the base. The jamming cleat comprises a pair of lengthwise opposing walls extending upward from the base, with a substantially V-shaped, ridged jamming groove formed by opposing internal faces of the pair of walls. The ridges are angled upward toward the release end of the jamming groove. The skene chock comprises a pair of spaced apart rigid arm members extending upward from the base, skene portions of each of the rigid arm member curving inward toward one another to thereby form an anchor line receiving aperture.