The hills which rise to 80 metres (260 ft) above Ordnance datum (mean sea level) are made up of limestone, rheatic clay and Keuper marl covered with calcareous grassland, scrubland and coppiced woodland.

This supports a variety of Butterflies, Leafhoppers, Spiders, Soldier Flies and Great Green Bush Crickets living on the vegetation.

Notable buildings include Ivythorne Manor, which was originally built for Glastonbury Abbey, Walton windmill and a small sanatorium which became the first youth hostel in Somerset.

The ridge is underlain by Blue Lias with alternating strata of limestone, rheatic clay and Keuper marl.

[2] At the highest point on Walton Hill, which reaches 80 metres (260 ft) above Ordnance datum (mean sea level),[2] there is a topograph or orientation stone used as a triangulation point and highlighting key features of the surrounding landscape including the Somerset Levels and the Admiral Hood Monument.

[6] Ivythorne Manor is a Grade II* listed building which was built as a monastic dwelling in the medieval era and rebuilt in 1488 by John Selwood, Abbot of Glastonbury Abbey.

[12] The shoe manufacturer C. & J. Clark, through the Society of Friends, had a small sanatorium and convalescent home on Ivythorn Hill overlooking Street.