Approximate location — plotted from published sources, not a site visit, and not a guarantee of access.
U.S. Fish & Wildlife Service refuge at the Bill Williams River delta into Lake Havasu, protecting a rare cottonwood–willow riparian gallery forest in the lower Colorado Desert. Visitor center, Peninsula and Delta trails, fishing piers, non-motorized boat access, and winter waterfowl / migratory songbird concentrations between Parker and Lake Havasu City.