- Photo
- Lidar Scan:
- ERA: Cenozoic
- Period: Quaternary (wiki, alpha)
- Epoch: Holocene
- Age: 12,000 years ago (max)
- Formation: [Travertine does not have a specific formation name. It is associated with hot springs emanating from the Hot Springs Sandstone.]
- Lithology: Travertine (Tufa)
- Original location: 34.5160136, -93.052589
- Donor organization: On permanent loan from Arkansas Geological Survey
- Donor contact: Scott Ausbrooks / Angela Chandler
- Financial support:
- Hogback Exploration (Gerry Lundy)
- Note: Sample chosen as an unusually large and pure example of limestone deposited around mineral springs.