| Consolidated Impact Crater Database | Sim City | 8:29 AM |
| Amazing Extra-Terrestrial Landscape of Yehliu Geo Park | CuriousJM | 4/28/13 |
| The mystery of the Carolina Bays | Hill (GEC moderator) | 1/27/13 |
| Timbered Crater | Positive Ion Things | 1/25/13 |
| Colorado River tour | TomKjeldsen | 11/26/12 |
| Inferred Orientation of Distal Ejecta | Cintos | 10/15/12 |
| Spectacular Painted Hills of Oregon | CuriousJM | 10/2/12 |
| Giant Guatemala City Sinkhole | Frank4 | 7/28/12 |
| Mysterious rocks of Browning Mountain, IN | ma3wright | 7/1/12 |
| Crater de meteorito en el Ambato Catamarca, Argentina | Frlawer | 7/1/12 |
| Trópico en Movimiento | ereenegee | 3/22/12 |
| Strange circle of nature | Jossian Costa | 3/13/12 |
| De Hondsrug | kite_surfer | 10/25/11 |
| Rapanui Rock / Shag Rock | NormB | 8/8/11 |
| Blythe Bay in Wilmington, NC | Cintos | 4/12/11 |
| Of Sand Dunes and Carolina Bays | Cintos | 3/4/11 |
| USGS Shoreline Change Study | JavaGAR | 2/24/11 |
| Largest Crystals of the World | kite_surfer | 2/19/11 |