Locality · Corps of Engineers: free permit, personal use
Caesar Creek spillway
Warren, Ohio, United States
The Caesar Creek Lake emergency spillway near Waynesville, Ohio, is the best legal public site for Cincinnatian Ordovician fossils, where the Corps of Engineers issues free permits to pick brachiopods, bryozoans, horn corals and Flexicalymene trilobites from the weathered limestone and shale. Surface pickup and the palm-size rule apply. It is the standard field trip for Ohio and Kentucky clubs.
| Country | United States |
|---|---|
| State / province | Ohio |
| County | Warren |
| Land manager / status | US Army Corps of Engineers |
| Access | Free permit from the visitor centre; collect in the emergency spillway |
| Formations | Kope Formation (Cincinnatian) |
| What is found | Flexicalymene, Isotelus fragments, Platystrophia, Rafinesquina, bryozoans, Cyclonema |
| Coordinates (public site) | 39.49, -84.05 |
Rules
A free collecting permit from the Caesar Creek Lake visitor centre is required each visit; collecting is limited to the spillway, surface pickup only (no tools, no digging), specimens no larger than can fit in the palm of the hand, for personal use only.
Source: https://www.lrl.usace.army.mil/Missions/Civil-Works/Recreation/Lakes/Caesar-Creek-Lake/ (checked 2026-09-16).
Collecting rules
Elsewhere
Cite this article
Stratum Study. "Caesar Creek spillway" (Locality). Stratum Study pack 2026.09, as of 2026-09-19. https://stratum.black/study/localities/caesar-creek-spillway. Accessed 2026-09-20.
@misc{stratum-caesar-creek-spillway,
title = {Caesar Creek spillway},
author = {{Stratum Study}},
howpublished = {\url{https://stratum.black/study/localities/caesar-creek-spillway}},
year = {2026},
note = {Locality article, Stratum Study pack 2026.09, as of 2026-09-19; sources: stratum, commons. Accessed 2026-09-20.}
} Citations carry the pack version and the article's as-of date so they resolve to the same text later. The facts themselves belong to the sources listed below; cite those for the science.