Bostons role as a transportation center during the mid-19th century is evident on this general reference atlas map. Wharves lining the eastern shore of the peninsula provide evidence of the citys long-time shipping industry.

Meanwhile, there were eight train stations located within the city proper, indicating the growing importance of rail traffic to the citys growth. In addition, the regional inset shows these rail lines radiating out to the neighboring suburbs and industrial towns in eastern Massachusetts.