What's on
Wednesday July 8th Monthly Meeting
Online Lecture via Zoom: Geology and Life Lecture Series
Lecture: "All Fossils Are Rotten: The Science of Death, Decay and Preservation", by Dr Thomas Clements (www.tgclements.com)
To attend as a visitor, please contact us.
Regular visitors will be asked to become members.
Lecture Details
July 11 Saturday Field Trip / Building Stones Walk
August 8 Saturday Field Trip / Building Stones Walk
August 12 New Zealand Travelog, part 2 (South Island) by Allan Wheeler on Zoom
September 5 Saturday Field Trip / Building Stones Walk
Please contact us for more details.
Field Trips
Thursday 13th August: LOCAL RIVERS display, 2-4pm at The Stables, Eastcote House Gardens
For our Summer Social we're planning a walk along the River Pinn to coinicide with our next drop-in event at The Stables, Eastcote House Gardens. Bring your own rocks to show us and meet our members. No need to register.
Drop-in Public Displays CONTACT US
What we do
About HHGS Stanmore Gravel Project ROCK SHOW ONLINE! Maurer's Tectonics Field Trips Explore Geology Local Geology JOIN US! Outreach enquiries HHGS on YouTube HHGS Facebook Page
2026 Lecture Programme
Lectures are held on Zoom at 8pm on the 2nd Wednesday of the month. email contact@hhgs.org.uk to request link
Jan 14 – Volcanic Britain: When, Where & How, by Prof Nick Petford (Durham University)
Feb 11 –
A billion years of sea level change due to changes in plate tectonics and ice caps, by Dr Douwe van der Meer (HHGS)
March 11 –
Thames through time - Cornish Flavour, by Ian Mercer (GeoEssex)
April 08 –
UK Geothermal Nation - power to the people, by Prof Jon Gluyas (UK National Geothermal Centre, Durham University)
May 13 – AGM followed by Allan Wheeler's travelog from his recent trip to New Zealand
Geology and Life Lecture Series
June 10 – Life and Rocks - A Deep-Time Story of Earth's Transformation", by Dr Ernest Chi Fru (Cardiff University/ Prifysgol Caerdydd)
July 08 –
All Fossils Are Rotten: The Science of Death, Decay and Preservation, by Dr Thomas Clements (www.tgclements.com)
September 09 - Dinosaur National Park in Alberta, Canada, by Prof Jon Noad (University of Adelaide)
October 14: Megalosaurus and the Dinosaur Highway, by Dr Emma Nicholls (Oxford University Museum of Natural History)
November 11-
The Cambrian Explosion, by Prof Rachel Wood (Edinburgh University)
Christmas Lecture
December 09 - The Influence of Geology on London's Underground Railways, by Jonathan Gammon (Association of Geotechnical and Geoenvironmental Specialists, retired)
Lectures are held on Zoom at 8pm on the 2nd Wednesday of the month. email contact@hhgs.org.uk to request link
Uxbridge Rock Show ---> Harrow Rock Show
Due to the relocation of Uxbridge Library to smaller premises, our Rock Show was held at Headstone Manor Museum in 2025. We are actively looking for alternative sites for showing our extensive collections.
We hold
single-theme displays at Brunel University and Eastcote House Gardens throughout the year.
Please visit our Rock Show Online:
click for our Rock Show Online

Look out for news of HHGS in Earth Heritage Magazine, summer and winter editions. Subscribe free of charge to receive notification of publication.


NEW Virtual Building Stones Walk in Central Harrow!
You may remember our series of local Geological Trails from 20 years ago, available as printed brochures from libraries in Harrow and Hillingdon. These are now being updated as Virtual Tours by our Field Secretary, Allan Wheeler, in full colour and high resolution pdf format. Slimmed-down printed leaflets are also being produced for handing out at events and through local libraries.
NEW Virtual Tour! Building Stones of Harrow Virtual Building Stones Tour of Uxbridge Building Stones in Pinner Geotrail Virtual Building Stones Tour of Pinner
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ROBERT "Bob" MAURER
An Obituary has been published by the Geological Society of London in the Autumn edition of Geoscientist Magazine. See Bob's Obituary online here.
Click for details of Bob's life and work.
Maurer paper, Okayama University
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STANMORE GRAVEL PROJECT
We have exposed a section of gravel on Harrow Weald Common which is currently open, so do go and take a look. The 258 bus stops nearby and it's a wonderful location for its view over London and woodland walks. See the Project page for more details

Formed in 1973, the Society's aim is to advance public appreciation of geology by observation, discussion, field studies, research, illustrated talks and exhibitions. Memberships embraces all age groups from 16 years upwards, regardless of gender or race, and includes those with widely diversified interests. We have a lively program of meetings held on the second Wednesday of each month. Exhibitions at locations throughout the London Boroughs of Harrow and Hillingdon, and elsewhere, give members an opportunity to display aspects of their particular interests and their collections. We also have a good field trip programme to suit all tastes.