The quarry gated this cave in May 2007.
At Morganstown, just off the A470 near Taff's Well, a footpath behind the Tynant Inn leads past allotments to Garth Wood. Climb straight up the hill and the entrance is near the top in a shallow depression about 7 metres below the top, but not easy to spot until you are right on top of it.
Current Access arrangements at http://www.cambriancavingcouncil.org.uk/restricted access caves.html
An interesting and well decorated cave which lies very close to the active quarry.
A wide entrance leads to a ledge. There are three places to climb down from this ledge to the lower passage, which contains a short oxbow at the end. The cave may be lost due to quarrying.
Entrance excavated 1912, 1963 (entrance enlarged); cave explored further by ISCA CC in 1986, connected to Ogof Ffynnon Taf
Arch. Camb.,107, Savory, H.N. pp.3-63, 1958. Mention of archaeological finds.
Bulletin of Board of Celtic Studies. 18, 221-227, Alcock, L., 1959. Dark age objects of Irish origin found in the cave.
The Cardiff region - a survey. University of Wales Press, pp.222, Rees, F.J. (ed.), 1960. Report compiled for the Brit. Ass. Meeting in Cardiff, 1960. Describes the archaeology of the cave.
British Caving (Routledge, Kegan Paul) Cullingford,C.H.D., 2nd Ed. 1962. Archaeology.
Caves in Wales and the Marches (Dalesman), Jenkins, D.W. & Williams, A.M., 1st Ed.1963 and 2nd Ed.1967. Location, description and brief details.
SWCC N.L. 45, Hussey, M.S. pp.17-18, 1963. Archaeological dig at the Lesser Garth Cave, Radyr - Interim Report
Trans.Cardiff Naturalists Society, 93, Hussey, M.S., pp.18-36, 1966. Final Excavations at the Lesser Garth Cave
BCRA Trans. 10(1) (1983), Davis, P.R., The Lesser Garth Caves, near Cardiff, South Wales. pp.40-45
Isca Jl.9, pp.27-29, Keith Jones, Lesser Garth developments, 1988
Caves of South Wales, Stratford, T., 1995
Descent 179, p.11, Chris Howes, Quarrying near Lesser Garth
Descent 188, p.19, A gate on Lesser Garth
Archaeology in Wales 48 (2009), Mark Redknap, Richard Madgwick, Brian Davies, Adam Gwilt and Monica Cox, pp.75-76, The Lesser Garth cave human remains: an interim statement 75
Descent 208, p.19, Activity at the Garth
Cave and Karst Science (2010), J.Carter, A.Fowles, C.Angele, Monitoring the population of the linyphid spider Porrhomma rosenhaueri (L. Koch, 1872)(Araneae: Linyphiidae) in Lesser Garth Cave, Cardiff, UK
Natur Cymru, Autumn, p.44 (2011), J.Carter, The Cave Spider Hunt
CSS nl 54(7/8) pp.60-62, 2012, Tim Watts, The Caves of the Lesser Garth