Digging logs from the Association of Thrupe Lane Advanced Speleologists at various sites between 1990 and 2002 are available for download as PDFs from the links below:

DigCommenced Ended Pages
Eighteen Acre 13 Oct 1993 9 Apr 1997 8
Cairo Shaft 16 Oct 1997 29 Nov 1997 1
Clay Holes 11 Jun 1994 30 Sep 1995 4
Cook's Wood Quarry Cave 31 Mar 1996 31 Mar 1996 1
Dave Mitchell's Dig 19 Apr 1997# 21 Oct 1998 10
Frog Pot 17 Sep 1997 30 Dec 1998 8
His Lordship's Hole 16 Jan 1999 27 Jan 1999 1
Honeymead Hole 27 Apr 1996 16 Apr 1997 25
Little Crapnell Swallet 29 Apr 1995 17 Dec 1995 16
Longwood Valley Sink 3 Jan 1993 11 Dec 1994 11
Rushy Ground Swallet 5 Oct 1994 10 May 1995 3
Thrupe Swallet 5 Dec 1999 20 Feb 2002 24
Viaduct Sink 1 Jul 1990 26 Nov 1995 15

# - earlier digs recorded from 4 Feb 1962

Digging logs from 2002 onwards are available on this site in the Digging Log Archives folder.

In addition, photographed log books for Viaduct Sink, Longwood Valley Sink and the Thrupe Lane Swallet Bleak Hall dig are available below.

Viaduct Sink Dig 1976-78
Viaduct Sink Dig 1976-78
The Viaduct Sink Dig log book, covering activities from 1st January 1976 to 2nd August 1978, mainly recorded by Simon Meade-King. A chronological contents list (MS Word format) is also available.
ATLAS Mailing List Dig Logs 2002 onwards
ATLAS Mailing List Dig Logs 2002 onwards

Yearly archives of the dig reports from the now-defunct 'ThupeLite' weblog and the ATLAS team mailing list. Grateful thanks go to Paul Stillman for tirelessly compiling these.

Logs for 2002 to 2008 were recovered from an archive copy of the ThrupeLite website via the Internet Archive's highly useful "Wayback Machine". Unfortunately the ThrupeLite logs for 2003-2004 are currently "lost". ATLAS Digging Log 2002.pdf (2003-2004 currently lost) ATLAS Digging Log 2005.pdf ATLAS Digging Log 2006.pdf ATLAS Digging Log 2007.pdf ATLAS Digging Log 2008.pdf ATLAS Digging Log 2009.pdf ATLAS Digging Log 2010.pdf ATLAS Digging Log 2011.pdf ATLAS Digging Log 2012.pdf ATLAS Digging Log 2013.pdf ATLAS Digging Log 2014.pdf ATLAS Digging Log 2015.pdf ATLAS Digging Log 2016.pdf ATLAS Digging Log 2017.pdf ATLAS Digging Log 2018.pdf ATLAS Digging Log 2019.pdf

Logwood Valley Sink 1984 - 1990
Logwood Valley Sink 1984 - 1990
See also the compiled index spreadsheet to these volumes.