protection of threatened habitats and species. It holds events at its headquarters or on its reserves. It is involved in recycling, waste management and promoting sustainable practices. It advises landowners and local authorities. The trust publishes a regular printed magazine to keep people informed, and maintains a subscription list for a regular electronic newsletter. The printed magazine was 'Highly Commended' in the BBC Wildlife Magazine Awards for the Best UK Environmental Charity Publications in 1997. Nature reserves Gloucestershire is varied in scenery due to the geology. It is also a mainly agricultural county and can be divided into four distinct regions being: the Cotswolds; The Severn Vale; Over Severn and the Forest of Dean. The areas include woodlands, grasslands, heathlands, scrub, standing water, marshes, bogs, floodlands, estuaries. The trust has over 60 reserves throughout Gloucestershire, covering some 866 hectares or more. The trust issued a reserves handbook in 1979, which has been updated at intervals with a supporting publication for 2009/2010 and for 2011 for the 50th Anniversary of the trust. These reserves are either purchased or managed under agreement. The value of these reserves in respect of special and rare species is defined through national standards, and particularly through Natural England, which sets thresholds for 'favourable condition' status. Management Plans must be written for all nature reserves. The trust's reserves are listed below and include Sites of Special Scientific Interest (SSSIs): Arle Grove Ashleworth Ham SSSI and Meerend Thicket Badgeworth SSSI Ban-y-gor Woods SSSI part of the Lower Wye Gorge SSSI Betty Daws Wood SSSI part of Dymock Woods SSSI Brassey SSSI part of the Brassey Reserve and the Windrush Valley SSSI Bryworth Lane part of the Cotswold Water Park group of reserves Cannop Bridge Marsh at Cannop Ponds Chaceley Meadow SSSI Chedworth Chosen Hill Clarke's Pool Meadows SSSI notified as Clarke's Pool Meadow Collin Park Wood SSSI notified as Collinpark Wood Coombe Hill Canal SSSI and Meadows Cutsdean Quarry Daneway Banks SSSI East Wood Edgehills Bog Edward Richardson and Phyllis Amey part of the Cotswold Water Park group of reserves Elliott SSSI notified as Swift's Hill Five Acre Grove Foxes Bridge Bog Frith Wood (Morley Penistan Memorial) SSSI part of Bull Cross, The Frith and Juniper Hill SSSI Frome Banks Greystones Farm (includes Salmonsbury Meadows SSSI) Gwen and Vera's Fields Hobbs Quarry SSSI Ketford Bank Lancaut SSSI part of the Lower Wye Gorge SSSI Laurie Lee Wood Laymoor