The landscape of the area surrounding Rhigos has been noted as sites of special scientific interest These are areas such as the famous Waterfall Country, Cwm Cadlan and nearby Blaencynon SAC. The Joint Nature Conservation Committee which advises the government and devolved administrationson UK-wide and International nature conservation states that the damp grassland and heath of the Blaencynon site has been noted as an area that supports the Marsh Fritilliary Butterfly. This butterfly is threatened not only in the UK, but across Europe. which makes this area important partner in an international conservation effort.