In 2010, the Bureau of Land Management and the Sonoran Institute convened a workshop to examine trends in collaboration and community-based land management planning. This booklet shares the hard-won experience of the workshop participants, and other stories from the field, and highlights key principles for developing and sustaining landscape-scale collaborative efforts. Whether you are just starting out or have a more developed partnership, we hope that these principles and stories are helpful to you as a practitioner of large landscape conservation partnerships.