Don has worked in watershed assessment and implementation as well as trail planning and implementation since 1978. Don has extensive experience in riparian, wetland, and instream habitat enhancement, with a focus on estuarine environments around Humboldt Bay. He has also worked extensively in upslope erosion control, road assessment, and road rehabilitation and decommissioning. He has provided oversight to construction of several segments of the California Coastal Trail including the Hammond Trail – Widow White Creek Interpretive Trail and Multi-use Trail construction and the Elk River- Hikshar’i Trail. He has also led numerous stream and riparian enhancement projects including the Widow White Creek Enhancement Project and the Wood Creek Tidal Marsh Enhancement Project. He was the project lead for the Humboldt Bay Sediment Reduction and Salmon Habitat Improvement Project and has been leading the Martin Slough Enhancement Project since 2001. Don serves as the president of the Salmonid Restoration Federation, the vice-president of the Trinidad Coastal Land Trust, and is a founding member of the Trinidad Bay Watershed Council.