The topography and differing soil types provide a habitat for an unusually wide range of plants, attracting a variety of insects, including several species of butterfly.
[4] Dolebury Warren overlooks the villages of Churchill and Rowberrow and provides good visibility across the surrounding lower lying areas as far as the Bristol Channel.
[20] The warren at Dolebury is completely enclosed by the substantial ramparts of the Iron Age hill fort and thus provided an ideal location to breed rabbits.
[22] Some of these structures, along with earlier Iron Age features, have been damaged by subsequent quarrying which may have been for lead, ochre or calamine.
[25] A three-storey building, believed to be the warrener's house and possibly a watch tower, surrounded by a garden, was in ruins by 1830.
[32][33] The site of the fort and warren is now grassy slopes which attract a wide range of wild flowers and butterflies.
[4] Kidney vetch (Anthyllis vulneraria), harebell (Campanula rotundifolia) and woolly thistle (Cirsium eriophorum) thrive on the dry stony soils.
Heath bedstraw (Galium saxatile) and wood sage (Teucrium scorodonia) are found in more acidic areas.
[31] Scarce plants found at the warren include knotted pearlwort (Sagina nodosa),[35] and slender bedstraw (Galium pumilum).
[36] Butterflies recorded here include the small blue (Cupido minimus), marbled white (Melanargia galathea), dingy skipper (Erynnis tages), grizzled skipper (Pyrgus malvae), small pearl-bordered fritillary (Boloria selene), and wall brown (Lasiommata megera).