Maine

One of original colonies
Became state: March 15, 1820

This heavily-wooded state has seen significant logging railroad development, but logging railroads are minimally represented in the known certificate population. Instead, a large percentage of the known certificates from Maine are concentrated among the very large railroads such as the Maine Central and the Boston & Maine. And unlike the mining industry where a huge number of companies incorporated in this state with operations elsewhere, railroads do not seem to have followed suit. Moreover, being at the "tip" of the country, comparitively few railroads passed through Maine, except for those to and from Canada. While there are some very rare certificates from Maine, there are fortunately quite a few certificates to go around to specialists.