This is the sixth progress report on a study of the population ecology and conservation of Hartmann's mountain zebra that has been underway since 2005. The project aims to help support the conservation of this sub-species in Namibia and to study population biology using an individualbased approach. Hartmann's mountain zebra (Equus zebra hartmannae) is a protected species in Namibia and of global conservation importance (Novellie et al, 2002 & 2008; IUCN Red List Category: Vulnerable) and, while numbers have increased in some areas, they remain vulnerable under drought conditions, particularly where seasonal movement is restricted by enclosure and where they share their range with livestock. They are an important resource in a wildlife-based economy and are valued for both non-consumptive (mainly ecotourism) and consumptive use. They have been extensively reintroduced to support wildlife-based economies, particularly in the communal conservancies in the north-west where off-take quotas are set based on ground counts. Locally, mountain zebra may come into conflict with livestock farmers over grazing and this becomes more critical during droughts. The main issues in their conservation management are of managing a valuable resource, particularly in relation to sustainable consumptive and non-consumptive use (Barnes and de Jager, 1996).