A look at the backlog of containerships anchored in Puget Sound right now, and a look at how Puget Sound and the Columbia River compare as waterways: they’re quite different in interesting ways and surprisingly similar in others.

[Photo Credit: The MV Aurora Explorer cruises toward the Seymour Narrows in Discovery Passage between Vancouver and Quadra islands north of Campbell River, British Columbia, Canada. Credit: Wikimedia Commons, Photographer David Stanley, https://flickr.com/photos/79721788@N00/50260397688]