Discover the Hidden Geological Story of the Onrus River
Join the Overberg Geoscientists Group for an insightful presentation by John Blaine, exploring the fascinating geological history of the Onrus River and Hemel-en-Aarde Valley.
This talk dives into:
• The impact of the September 2023 floods
• Ancient peat beds dating back 10 000 years
• River evolution, waterfalls, and landscape changes
• Evidence of early human activity in the area
It’s a unique look at how geology, climate, and history have shaped one of the region’s most remarkable landscapes.
Read the full document here.





