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Port of Long Beach, California

The Port of Long Beach is the second-busiest container port in the United States and acts as a major gateway for trade between the US and Asia. With the activity from this port estimated at over $100 billion per year, this specific port is a location it will pay to keep track of.

Satellite analysts use these images to count shipping containers coming off ships in California and are able to get a sense of overall US import activity, comparing activity month by month.