Better weather is here and I made a trip out today. One update and two adds.
Updated Saratoga County with photos of the Ballston Terminal Railway station in Rock City Falls (no nettles in the winter and early spring!) and added the Mt. McGregor Railroad station in Saratoga Springs. This station was "lost" for a bit. It was assumed still standing but people weren't sure where. Even the City Historian was not sure. But after asking last summer, she contacted me in March and told me that research on the Berrigan family history uncovered the location of the station. It had been moved by a Berrigan! Thank you Maryann Fitzgerald.
Added the Little Falls & Dolgeville station in Dolgeville Herkimer County. Reading an old book on the line yield a clue it had been saved. The local historian found it for me. Thank you Susan Perkins.