CGEM PierJeff's pier will be comprised of three main sections: adapter plate, metal pier, and concrete pier. The adapter plate of choice comes from Dan's Piers (shown at the left). They make high quality top plate systems for 8" and 12" piers that are compatible with many different GEM's including the Celestron CGEM. The pier adapter plate will be attached to a solid 6" metal pier. The metal pier will then bolt to a 12" concrete pier (which is complete as of this writing) that extends more than 48" into the ground which is below the frostline for Jeff's location. When complete, this pier should provide a very stable platform for astrophotography with the Celestron CGEM.