The Gobbler Formation is a thick Pennsylvanian rock unit in New Mexico’s Sacramento Mountains, especially visible in cliff exposures at Oliver Lee Memorial State Park. Measuring roughly 1,200 to 1,600 feet thick, it includes lower quartz sandstone and limestone beds and an upper sequence of shale and quartz sandstone, with some later sills intruded into the strata. Resting on the Lake Valley Limestone across an ancient erosion surface and overlain by the Beeman Formation, it preserves fossils and sedimentary features that record changing Pennsylvanian environments, including sea-level fluctuations. Its Bug Scuffle Limestone Member is particularly notable for striking exposures and concentrated marine fossil pockets.