![View Down the Chipstead Valley [Wikimedia, Creative Commons: Peter Trimming]](https://croydonnaturalhistoryscientificsociety.files.wordpress.com/2015/05/view_down_the_chipstead_valley_-_geograph-org-uk_-_1225928.jpg?w=300&h=169)
View Down the Chipstead Valley [Wikimedia, Creative Commons: Peter Trimming]
Monday, 4 April 2016 – Paul Sowan
Paul talks about how geological maps have been made since 1819, and what they do and don’t tell us! Illustrated with examples from the Society’s collection.
