councillors. Senedd Cymru – Welsh Parliament The Senedd representative for Cardiff North is Welsh Labour MS Julie Morgan. Westminster Lisvane lies within the parliamentary constituency of Cardiff North, which has been represented since 2017 by Anna McMorrin (Labour). Geography Geological structure The surrounding soils are mostly a strong, brown, dry earth, well adapted for arable farming and the growing of grains of all kinds that contributed to the area being a mostly farming community until the modern era. Soils were further enriched over the millennia by alluvial deposits from the meandering River Taff and other smaller tributaries. The substratum under the whole area is a limestone and lime shale that was likely laid down under a warm ocean at some stage in the distant past and subsequently ground down by glaciers during the last ice age around 18,000 years ago. M4 motorway The neighbouring suburbs are Llanishen to the south, Thornhill to the west, Pontprennau to the east, and Lisvane's effective northern border is the M4 motorway. The M4 corridor around Cardiff was announced in 1971 as a replacement for a northern link road that had been on the statutes since 1947 but never built. The northern 'Lisvane route' for the M4 was eventually chosen after a number of public enquiries and objections from village residents. The new motorway was completed and opened in July 1980. The Graig The Graig is a hill situated north of Lisvane. It borders on Caerphilly. There is also a quarry near the Graig which is now abandoned. The Rhymney Valley Ridgeway Walk runs along the top of the Graig, and has some very good walks and mountain biking routes. Particular favourites for locals include routes to the east to Rudry and the Maenllwyd Inn, and to the west to Caerphilly mountain, The Travellers Rest, and further on to Tongwynlais, Castell Coch and the Taff Trail. Demography The United Kingdom Census 2011 demographically showed that the total population of Lisvane was 3,707. The average age was 44.6 years old and 69% of the adult population were married. Of the 3,707 total, children under the age of 19 accounted for 864 and people over the age of sixty five totalled 866. 1,515 were in full-time employment, and 188 of those worked exclusively from home. Of those that travelled to their place of employment 1,090 drove by private car, 74 travelled by train and 43 by bus,