Hidden Earth 2023
More discoveries and future potential in the North York Moors
30 minute Lecture|Matt Ewles

Abstract
Back in 2020, within weeks of first lockdown ending, we (York Caving Club and North York Moors Caving Club) pumped out a third sump to discover 1km of new passage in Jenga Pot in the North York Moors. This started yet another era of exploration in the ever-expanding Jenga-Excalibur system. This talk will showcase these new extensions and discuss areas for future exploration, including a very recent (July 2023) extension that points towards a substantial unexplored higher level system!
We will also talk about recent work at our dig at Cawthorn, near Pickering, 6.5 km east of Jenga/Excalibur Pot. This is now at least 70m long, takes a stream in wet weather and draughts nicely. We have at least 100m vertical and 4km horizontal range here to the likely resurgences, so this offers great potential.
Will Jenga be connected to the River Dove to create a Dow/Providence style valley-to-valley through trip? Is there an extensive high-level network waiting to be discovered above the Jenga extensions? Will Cawthorn become the second mega-system for the North York Moors? Only time and effort will tell...
More from 2023
Lecture|Peter Dennis
Cavers Rescue Cavers - the role of BCRC
Lecture|Andy Goddard and Rob Thomas
Recent Exploration in Northern Thailand
Lecture|Julian Todd
TunnelVR - An easy way to draw 3D surveys that makes sense to people
Workshop|Jonathan Lester
BCRA - Cave Survey Group Meet
Lecture|David Hardwick
Caves of the North Bristol Outcrop
Lecture|Ellie Pizey
Migovec Expedition 22, 23
Lecture|Brendan Hall - Christian Kuhlman
The New Wave of Paperless Survey Devices
Lecture|Adele Ward
A sink to rising Fairy tale in Weardale.
Lecture|Martin Wright
Operation Beta - Cave diving in Peak Cavern from 1947 to 1952
Film|Nick Thorne
GB Cave: descent of Mendip's tenth deepest cave