I found this pair on a rock near Deer Park campground, in Olympic National Park, about 5,000 feet elevation.
Female: 1, 2, 3 Male 4, 5, 6
The false black widow is in the same family as the Black Widow, Theridiidae. It is native to Europe, not North America, but has become common on the whole Pacific Coast. They have mild venom and cause symptoms similar to a mild black widow bite.