Welcome to the official website of the Dorset Geologists' Association Group (DGAG).

Upcoming events of general geological interest in Dorset, and the surrounding region, are listed below.

For a more specific listing, use the search bar, below, or select one of the following categories:
Dorset Geologists' Association Group (DGAG), Devon, Dorset, Hampshire, Somerset, Wiltshire.

Get involved! For geoconservation work parties, see the Dorset's Important Geological Sites (DIGS) events list.

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October 2020

Holiday Rocks! ONLINE

24th October 2020 - 24th November 2020

Instead of our usual meeting at Broadmayne Village Hall, we shall be hosting a number of virtual, online presentations: Corsica Holiday Rocks 2020 part 1 Holiday Rocks 2020 part 2 Holiday Rocks 2020 part 3 Explore the Geology and Terrain of Dorset Mining in the Newlands Valley, Cumbria

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November 2020

CANCELLED DGAG Annual Dinner 2020

28th November 2020
Hotel Rembrandt, Best Western Weymouth Hotel Rembrandt, 12-18 Dorchester Road
Weymouth, Dorset DT4 7JU United Kingdom
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Provisionally booked at the Hotel Rembrant, Weymouth, Dorset DT4 7JU. More details and booking arrangements to follow...

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February 2021

Carbonate concretions in the Jurassic Coast

10th February 2021 @ 7:00 pm - 10th March 2021 @ 8:30 pm

Carbonate concretions in the Jurassic Coast. Lecture by Professor Jim Marshall, Liverpool University.

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April 2021

Urban Geology Walk in Weymouth

25th April 2021

This is a 7 km walk which includes the geology of Newton Cove, Nothe Fort and Gardens, the Outer Harbour, the shops in St Mary's Street and St Thomas Street, the Rodwell Trail and Sandsfoot Castle. We will look at the different types of rocks used in the buildings and facings of shops which includes igneous and metamorphic rock types. As things stand at the moment we will do this walk in small groups of six or less. The cost…

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May 2021


22nd May 2021

DGAG Field Trip. Leader Alan Holiday. Includes visits to Haytor, Two Bridges Quarry, Burrator Reservoir and Merivale Quarry. Detailed itinerary: Take A35 to Exeter then follow M5 around Exeter. Take A38 (signposted for Plymouth) at end of motorway section. Take A382 Bovey Tracey road. Then follow B3344 and look for Haytor sign. Park at third car park nearest to Haytor. There are toilets at the first car park. Locality 1: Haytor. GR SX 7587 73. Granite varieties - Tor Granite…

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June 2021

The Vale of Wardour and Pub Lunch

10th June 2021 @ 9:30 am - 4:00 pm

This field trip was originally scheduled for 2020. However, due to a combination of COVID and flooding in the area, had to be postponed. DGAG Field Trip: Steve Hannath is taking us on a 5 mile walk in the Vale of Wardour. Then lunch at the Wyndham Arms in Dinton. Unfortunately, due to safety concerns, we will no longer be able to visit the quarry at Chicksgrove. As we need to order our food before the day members should book…

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26th June 2021
Portishead BS20 7HU United Kingdom + Google Map

This is a field-trip postponed from 2019. The original plan is outlined below:    Meet at 10.30 am at the western end of the esplanade at Portishead (café and toilets, see map). Nearest postcode to meet location: BS20 7HU.   Then walk SW along the Severn Estuary foreshore looking at Devonian Old Red Sandstone sediments with interesting sedimentary structures before seeing a fine example of an unconformity with Triassic breccia over the ORS sediments.   Later, look at the eastern…

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July 2021

Goat Island and the Slabs – Undercliffs NNR

10th July 2021 @ 10:00 am - 4:00 pm
Stepps Lane, Stepps Lane
Axmouth, Devon United Kingdom
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A unique chance to explore the landslip geomorphology and coastal geology of the Axmouth to Lyme Regis Undercliffs National Nature Reserve. Leader: DGAG member Geoff Rowland, who has become familiar with the Undercliffs NNR from volunteer conservation work with Natural England, EuCAN Dorset and the Axe Vale & District Conservation Society. We will walk into the western end of the Reserve, joining the South West Coast Path. We will visit Goat Island and the Chasm, the results of the Great…

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In the Footsteps of William Smith

25th July 2021
Monkton Combe, Village Hall
Monkton Combe, Somerset BA2 7HB

Portrait of William Smith aged 68 (courtesy of The Geological Society)   This walk has been rescheduled from an original date in October 2021.   William Smith came up with many of his ideas while working as surveyor on the Somerset Coal Canal from 1793 to 99, including the idea for making the world's first geological map.   We shall more or less follow the course of his old canal from Combe Hay to Monkton Combe, and visit several places…

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August 2021

Inferior Oolite Quarries near Sherborne

14th August 2021

This field-trip is led by DGAG members Bob Chandler and John Whicher. It is to compare the Oolitic limestone beds in two quarries. Frogden Quarry which is still used by Sherborne Stone and Louse Hill Quarry which is a disused quarry on the way towards Bradford Abbas. The quarry manager for Sherborne Stone has very kindly agreed to open up the stoneworks yard at the weekend to show us how the stone is cut. The trip finishes in Bradford Abbas…

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September 2021

The Black Country UNESCO Global Geopark

3rd September 2021 - 6th September 2021

DGAG Residential Weekend. We will be visiting the Black Country UNESCO Global Geopark on the weekend of the 3rd to 6th September 2021. Please note that this is a change from the original dates in 2020. It should be a fabulous trip to a fascinating area in terms of its geology. The region is the source of vast quantities of minerals that powered the industrial revolution. The oldest rock layers are limestones and shales full of shelly fossils and coral…

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October 2021

Fleet Lagoon Walk

9th October 2021 @ 10:00 am - 1:30 pm
Moonfleet Manor Hotel, Moonfleet Manor, Fleet Road
Weymouth, Dorset DT3 4ED United Kingdom
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A journey towards the core... of the Weymouth Anticline. The Fleet shore has a number of Geological Conservation Review (GCR) locations and includes Sites of Special Scientific Interest (SSSI) with a geological focus. However, nearby parking is limited and there is restricted access to privately-owned parts of the shore. This walk, led by Geoff Rowland (DGAG) and Andrew Lawrence (Moonfleet Manor Hotel) provides an opportunity to park and meet at the Moonfleet Manor Hotel and visit some classic locations on…

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Holiday Rocks

23rd October 2021
Broadmayne Village Hall, Cowleaze Rd, Broadmayne
Dorchester, Dorset DT2 8EW

Holiday Rocks: Geological talks at Broadmayne Village Hall. Tea and cake will be provided in the interval. Please let Kelvin know if you are attending as we need to plan refreshments. There will be a charge of £2 towards the costs of hall hire and refreshments. Any help with kitchen duties would also be appreciated.

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November 2021

Wimborne Minster

6th November 2021 @ 2:30 pm - 5:00 pm
Wimborne Minster, High St, Wimborne Minster
Wimborne, Dorset BH21 1EB United Kingdom
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The Minster authorities have agreed to private supervised DGAG Field Trip access into St Cuthburga’s Church, Wimborne from 3.00pm to 5.00pm Saturday 6th November accompanied by Minster Friends. Those booking should please meet at 2.15 pm in the North Porch with a brolly, if possibly wet, and outdoor clothing to quickly circumvent the exterior in an anti-clockwise manner to appreciate the range of stones used on site from Saxon times to the present. Binoculars or opera glasses useful. The interior…

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December 2021

Christmas Workshop

11th December 2021
Broadmayne Village Hall, Cowleaze Rd, Broadmayne
Dorchester, Dorset DT2 8EW

Christmas Workshop with buffet lunch at Broadmayne Village Hall. 10.00am-3.00pm Booking required for display tables and/or lunch (£3). If you just turn up you'll still be very welcome but we can't guarantee there'll be lunch for you!

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January 2022


January 8

Annual General Meeting for the Dorset Geologists' Association Group. Given the current COVID uncertainty due to the Omicron variant, the AGM will be coducted as a virtual meeting via Zoom.

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February 2022

The Geological Structural Evolution of the Jurassic Coast World Heritage Site

February 24 @ 7:00 pm - 8:00 pm
John Whites Rectory at the Dorset County Museum,, High West St
Dorchester, DT! 1XA United Kingdom
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A Dorset Geologists' Association Group (DGAG) talk by Vincent Shepard Starting promptly at 7:00pm and finishing at 8:00pm on Thursday 24 Feb 2022. Venue: John Whites Rectory at the Dorset County Museum, High West St, Dorchester DT11XA Lecture Entry Cost: £6 (£5 for DGAG members) collected on room entry Booking a seat: Contact DGAG events at email: cwebb48578@aol.com Booking will be on first request basis as the number of seats are limited. The wearing of masks is recommended as per…

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March 2022

Symondsbury Geowalk – RESCHEDULED

March 10 @ 10:15 am - 3:30 pm

Rescheduled from March 3 due to bad weather. Please Email Richard Hallett to register and for further details. Non-members welcome; sorry…. no dogs.

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April 2022

Geowalk from Corfe Castle

April 2

The next geowalk is on Saturday 2nd April, start at 10:15am, finish by 3pm. To reserve a space please e-mail me with your mobile contact number (richard.rh.hallett@outlook.com) and I shall send you further details. What/Where: A circular walk along bridleways, footpaths and minor road from Corfe Castle westwards to Ridgeway Hill and Creech Barrow Hill and return. Purbeck Chalk ridge, Cenozoic rocks and geomorphology. Great views on a clear day. Contribution to DGAG Funds: £2. Distance: 11.5km. Ascent/Decent: 370m. Walk Grade:…

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May 2022

Geowalk 3: Acton – Langton Matravers – Dancing Ledge

May 5 @ 10:15 am - 3:00 pm

Geowalk 3: Acton - Langton Matravers - Dancing Ledge The next geowalk is on Thursday 5th May, start at 10:15am, finish by 3pm. It is a group walk (max. 15), start and finish together. To reserve a space please e-mail me with your mobile contact number (richard.rh.hallett@outlook.com) and I shall send you further details. -------- What/Where: A circular walk along bridleways, footpaths and minor roads. Discover Spyway Barn, Dancing Ledge, Keates Quarry, Langton Matravers and Crack Lane Quarry. Geology: Purbeck…

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