Historically Salmon Creek delta was a tidal salt marsh with sloughs, ponds and oxbows but in the early 1900s settlers constructed dikes and levees, drained salt marshes, straightened stream channels, and installed tide-gates to create grazing land. The Humboldt Bay National Wildlife Refuge was established in 1971 and restoration efforts began. The refuge supports over 316 species of birds and 40 species of mammals and provides habitat for approximately 100 species of fish and marine invertebrates.
The refuge is a beautiful place! The Salmon Creek Unit has a small visitor center and a 1.7 mile trail that travels through different habitats. A short boardwalk leads to interpretive signs about the 1900s farm buildings that are still standing.
The trail is hard packed dirt and gravel and almost level so rolling is fairly easy.