- A. About 200 Million Years Ago
- B. About 100 Million Years Ago
- C. Now
The geological history of the Rochester area is long, eventful, and very exciting to anyone curious about the mysteries of the planet's past recorded in rocks. This is but an attempt to briefly summarize the most outstanding events that shaped our landscapes, determined our energy, food, and mineral resources; events that occurred long before humans existed to witness their magnificent power. After all, "civilization exists by geologic consent, subject to change without notice".
