- 2/2 (2002 deposit)
- Ffeil
- 1954, April-1965, Oct.
Rhan oCampaign for the Protection of Rural Wales (CPRW) records
The file includes information regarding the designation of the Brecon Beacons as a national park, proposed nuclear power stations at Trawsfynydd and Edern, Liverpool Corporation water scheme in Cwm Tryweryn and the Clywedog reservoir.