A method of forming a wind turbine foundation, comprising: providing an anchor cage in an excavation pit formed in a ground surface, the anchor cage including an upper flange, a lower flange, and a plurality of anchor bolts extending between the upper and lower flanges (34, 38); directing a first cementitious material into the excavation pit so that the anchor cage becomes at least partially embedded within the first cementitious material; allowing the first cementitious material to cure to form a rigid body; selectively engaging a connecting element with the upper flange and positioning an actuating element in operative relation with the connecting element, the connecting element and the actuating element positioned in non-contact relation with the anchor bolts; actuating the actuating element relative to the connecting element and thereby raising the upper flange from the rigid body into a leveled position; directing a second cementitious material into a space beneath the raised upper flange; and allowing the second cementitious material to cure to form a support layer, wherein the method further comprises: providing at least one leveling device at a position spaced above the upper flange, the at least one leveling device being supported on the anchor bolts, positioning the at least one leveling device to define a level plane, and wherein raising the upper flange into a leveled position includes raising the upper flange to contact the leveling device. providing an anchor cage in an excavation pit formed in a ground surface, the anchor cage including an upper flange, a lower flange, and a plurality of anchor bolts extending between the upper and lower flanges (34, 38); directing a first cementitious material into the excavation pit so that the anchor cage becomes at least partially embedded within the first cementitious material; allowing the first cementitious material to cure to form a rigid body; selectively engaging a connecting element with the upper flange and positioning an actuating element in operative relation with the connecting element, the connecting element and the actuating element positioned in non-contact relation with the anchor bolts; actuating the actuating element relative to the connecting element and thereby raising the upper flange from the rigid body into a leveled position; directing a second cementitious material into a space beneath the raised upper flange; and allowing the second cementitious material to cure to form a support layer, wherein the method further comprises: providing at least one leveling device at a position spaced above the upper flange, the at least one leveling device being supported on the anchor bolts, positioning the at least one leveling device to define a level plane, and wherein raising the upper flange into a leveled position includes raising the upper flange to contact the leveling device. providing at least one leveling device at a position spaced above the upper flange, the at least one leveling device being supported on the anchor bolts, positioning the at least one leveling device to define a level plane, and wherein raising the upper flange into a leveled position includes raising the upper flange to contact the leveling device.