| Name | Type |
|---|---|
| Llanberis Pass (1955 reprint with appendix of new routes) (1950) | Guidebook |
| Llanberis South (1966) | Guidebook |
| Llangattock Update 2014 (2014) | Guidebook |
| Lliwedd (1972) | Guidebook |
| Lliwedd (1998) | Guidebook |
| Lliwedd (1954 reprint) (1939) | Guidebook |
| Llyn Interim Guide (1979) | Guidebook |
| Lower Wye Valley (2007) | Guidebook |
| Lundy (1994) | Guidebook |
| Lundy Supplement (2018) | Guidebook |
| Maidencombe to Shaldon Coves Bouldering | Guidebook |
| Meirionnyd (2002) | Guidebook |
| Meirionnydd Update 2002-2014 (2014) | Guidebook |
| Mel Tor | Guidebook |
| Mid-Wales (1988) | Guidebook |
| Moel-y-Gest Quarry (2010) | Guidebook |
| Moelwynion Interim Guide (1962) | Guidebook |
| N Cornwall & W Penwith Supplement (1982) | Guidebook |
| N Wales Limestone Supplement (1983) | Guidebook |
| N Wales New Climbs Supplement (1983) | Guidebook |