Mike Lyons has spent many years surveying flora and fauna in wetland and river areas of the Pilbara. His surveys have included the areas around the Fortescue Marsh. Within the Pilbara, the middle to upper Fortescue Valley (upstream and downstream of Fortescue Marsh) has an especially high number and diversity of floodplain wetlands. These types of wetlands support distinct flora and fauna communities, but are poorly represented in the region’s formal conservation estate, so off-reserve management of the biodiversity values of these wetlands is important. Wetlands of this area have been identified as priority assets in several planning processes and listings, but there is relatively little information on their biological values and how these are distributed along the valley.