Images Featured Sites Quickmap Videos Gigapan Exhibits Exciting New Images from The LROC Team. Total posts from Nathan Williams 1 Search Tectonics in Mare Frigoris A mare wrinkle ridge transitions to a highland lobate scarp in Mare Frigoris. Illumination is from the lower-left in this 2.9 km wide mosaic of LROC NAC images M107069913L and M107069913R [NASA/GSFC/Arizona State University]. Published on 12 Oct 2011 Displaying 1 Post