Sunset & sunrise pictures: View images of Don Edwards San Francisco Bay National Wildlife Refuge

One of the country’s largest urban nature refuges has bay waters, mudflats and salt marshes rich in wildlife.

One of the country’s largest urban nature refuges has bay waters, mudflats and salt marshes rich in wildlife.

One of the country’s largest urban nature refuges has bay waters, mudflats and salt marshes rich in wildlife.

One of the country’s largest urban nature refuges has bay waters, mudflats and salt marshes rich in wildlife.

One of the country’s largest urban nature refuges has bay waters, mudflats and salt marshes rich in wildlife.

Don Edwards San Francisco Bay National Wildlife Refuge Sunset & sunrise pictures Oakland California Alameda County USA North America World