| Portal | Wednesday, January 22, 2025 05:48 hr PDT [UTC - 7] |
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| To refresh picture | 39 million-year-old tree (Spanish cedar Cedrela odorata) at Piedra Chamana Petrified Forest, Cajamarca, Peru (2017) |
| Sheep Creek Barrier Dam, in the Pariah river watershed, Southern Utah | Portal Civil and Environmental Engineering SDSU |