There is just so much information on the Over-Sea Railroad it was difficult to decide what to post. Dan in Middle Georgia got me started when he sent me this article at Trainweb.org about Pigeon Key. Great writeup by Mr. John c. Dahl with some neat photos. I have fished near Pigeon Key many times both from the 7 mile bridge and from a boat. The bridge had fishing catwalks but you had to walk a long distance out to them on the bridge. Really fun when a semi truck went by - not much room to get out of the way and hold on to the railing. Which was made from the original railroad track. Also note the bridge runs east-west, not north south as some might think.
Video about Pigeon Key
Lots of great photos of the history and building of the railroad in the next video.
Henry Flagler's private railcar, No. 91, was built in 1886 and carried
Henry Flagler south to Key West following the completion of his Over-Sea
Railroad in 1912. Today thousands of visitors tour the historic railcar
at the Flagler Museum in Palm Beach, Florida.
Another longer video that includes Whitehall, Flagler's mansion.
H/T and many thanks to Dan for the link to the first video.