HOGG Twitter @HOGGroup
By all accounts a good time was had by all viewing old geological maps from behind the scenes at the TOSCA event organised for HOGG members at @morethanadodo by Nina Morgan
h J R
HOGG Twitter @HOGGroup
Ted Nield wrote in Geoscientist 'The Aberfan Disaster not only ripped the heart out of one small Welsh village – it sucked life out of an entire industry.' He describes a personal connection in his book 'Underlands'
h J R
HOGG Twitter @HOGGroup
@BritGeoSurvey: The Torquay Old Series 1874 Solid Geology map was printed using a hand engraved copper plate. It has no contour lines, shading shows the land relief. The 2004 Solid & Drift 1:50 has insert maps at 1:250 000, one showing offshore solid geology & one showing Devonian successions.
h J R
The Freemasons’ Tavern where the Geological Society was founded in 1807
Early geologist in examining columnar basalt, Cader Idris, in: Robert Bakewell, Introduction to Geology. 1813.
Geologist of the Geological Survey examining the unconformity at Portishead, in: Memoirs of the Geological Survey of Great Britain, Volume 1. 1846.
‘Essai d’une carte geólogique di globe terrestre’ This is the first attempt of a geological map of the globe, by Ami Boue´ in 1843; this is the published version dated 1845. Image credit: Duncan Hawley © CC-by-NC
Marie Stopes, palaeobotanist, working in her laboratory, 1904. Her geological achievements and those of other women in geology feature in HOGG publications. Image credit: Marie Stopes International (with permission, in being used to further understanding about Dr Marie Stopes.)


“To understand a science, it is necessary to know its history.”
Augustus Comte (1798-1857)

HOGG (The History of Geology Group) exists to encourage interest in the history of geology, and the events and personalities that have shaped the way in which it is studied and practised today.

For details of our latest news and topical snippets on the history of geology please follow our Twitter feed (which can also be seen on the left of this page).

Membership is open to anyone with an interest in the development of knowledge about the earth and geology and how this has been represented (e.g. through geological maps). There is no requirement to be a Fellow of the Geological Society of London or have any other geological credentials, and we encourage interest from young people.

HOGG members are a network of knowledgeable enthusiasts who exchange and discuss information and queries about history of geology matters via a dedicated online mailing list.

HOGG holds at least three meetings each year, and members are eligible for reduced registration fees. From time-to-time other meetings and other activities are added to HOGG’s programme.

Details of forthcoming HOGG meetings can be found here.

HOGG produces occasional publications based on collection of themed papers from meetings and other topics relating to the history of geology, edited by HOGG members.

For further details and how to join please see the Join Us page.

HOGG is affiliated to the Geological Society of London


Forthcoming Meeting:

Nov 2021 - The ‘Discovery’ of the Silurian: following in the footsteps of Murchison.

Using original material and first-hand evidence from the field, Duncan Hawley will outline the origin one of the most iconic geological Periods, suggesting why Sir Roderick Murchison chose to view this particular location in the Wye valley as the site where he ‘discovered’ the Silurian.

Read More