Church and chapel data from The Religious census of 1851 : A Calendar of the returns relating to Wales, Vol 1, South Wales. Ed. by I.G Jones, & D. Williams. UWP, Cardiff, 1976. The names given towards the end of each entry are those of the informants. Check with Gwent RO to see what extant records are held, and possible names of chapels/churches built after 1851.
Treleck Grange Chapelry; Statistics; Area 1774 acres; Population 85 males, 63 females, total 148
Treleck Grange Church Attendance - (average) morning 20/30, afternoon 20/30 (alternate?) "......The few cottagers of Treleck Grange may send their children to Tintern National School consequently they are expected to attend there on Sundays" 1 service in English Henry Warrilow, Incumbent Minister
Kain, R.J.P., Oliver, R.R., Historic Parishes of England and Wales: an Electronic Map of Boundaries before 1850 with a Gazetteer and Metadata [computer file]. Colchester, Essex: History Data Service, UK Data Archive [distributor], 17 May 2001. SN: 4348. Here is a gazetteer/finding aid plus a set of overview maps to accurately identify the position of parishes within the county.
You can see maps centred on OS grid reference SO492106 (Lat/Lon: 51.791692, -2.737982), Trelleck Grange which are provided by: