What's on
Wednesday June 10th Monthly Meeting
Online Lecture via Zoom: Geology and Life Lecture Series
Lecture: "Life and Rocks - A Deep-Time Story of Earth's Transformation", by Dr Ernest Chi Fru (Cardiff University/ Prifysgol Caerdydd)
To attend as a visitor, please contact us.
Regular visitors will be asked to become members.
Lecture Details
Sunday 14th June: Trip to Harmondsworth Great Barn and St Mary's church
Meet there at 11am. We will arrange car-sharing and lifts where feasible; U3 (Uxbridge-Airport Central) and 350 (Hayes-T5) bus routes serve the village (each every 20min on Sundays). If time and transport permit we will also visit SS Peter and Paul church at Harlington. Please contact us to register and for more details.
Field Trips
Thursday 18th June: GREEN ROCKS display, 2-4pm at The Stables, Eastcote House Gardens
Display includes malachite, olivine, eclogite, verdite, jade, serpentinite, and much more. Bring your own green 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