There has been growing interest in the use of market-like instruments to achieve cost effective environmental outcomes, and a range of new tools are being explored. While competitive processes such as BushTender have been successfully designed to establish conservation contracts on private land, it is much more difficult to design competitive tenders that also require cooperation between landholders. This paper reports on a series of experimental workshops held with landholders in central-western Queensland to design an auction process that would protect biodiversity in a vegetation corridor. The research focused on options to develop a corridor where landholders need to cooperate on location options within a competitive bidding process.