Disclosed is an anchor for rock or similar material, and methods therefor. The anchor has a hinged base, which base consists of at least a pair of pivotally connected wings, the wings able to pivot about at least one longitudinal axis between, a first position in a closed state and a second position in an open state, the open state having a dimension between opposing parts of each wing that is greater than when in the closed state. A locking mechanism locks the wings in either the first position, or the second position. A connecting portion adapted to enable a load to be connected to the anchor connects to the hinged base, the connecting portion having a loading axis which is substantially parallel to the longitudinal axis. The anchor can be set between either the first position, or the second position, and then anchored to enable a load to be connected thereto.