The Society listed this site close to Basingstoke as 'bog', and included Hook Common (see separate entry), Bartley Heath and Greywell within the map. Today, Bartley Heath forms part of a Site of Special Scientific Interest (SSSI) with the adjoining Hook Common, and is partly managed by the Hampshire & Isle of Wight Wildlife Trust. Greywell is conserved as Greywell Moors nature reserve and is also managed by the Trust. At this site, the Trust is restoring fenland habitats.
(Above) The original SPNR survey documents for Odiham Marsh.