The Nature Conservancy Indonesia program examined several conservation strategies (nationally protected areas, sustainable forestry, orangutan habitat management, community protected areas) to see which is the most effective at decreasing the rate of land cover conversion in Borneo's highly threatened East Kalimantan forests. Remote sensing analysis compared rates of land cover change in conservation areas to control areas with similar biodiversity and threat levels. This presentation includes preliminary results and a discussion of the costs and benefits of different monitoring techniques.