Keystone Lake Project Office, park ranger, Alex Bilinski, U.S. Army Corps of Engineers, Tulsa District, takes piezometer readings during daily flood watch at Keystone Dam, in Sand Springs, Okla., July 11, 2025. When Keystone Lake rises to elevation 737 park rangers and lake office staff transition to daily flood watch which increases data gathering responsibilities. Piezometers are used to measure groundwater pressure below dams.
| Date Taken: | 07.11.2025 |
| Date Posted: | 07.17.2025 08:29 |
| Photo ID: | 9184902 |
| VIRIN: | 250711-A-PO406-7211 |
| Resolution: | 4480x6720 |
| Size: | 7.12 MB |
| Location: | OKLAHOMA, US |
| Web Views: | 7 |
| Downloads: | 1 |
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