locomotives

[Mr.Rusty]

Hello ; I am new to the forums ..My question is this. Where do I find info on how to tellbwhat type or series a locomotive is. I see listed on others sites that this thus type and a number of some type.
I repost pictures with permission of the person posting.
But I want more info so when I see after a train goes through my city I can hopefully list like that.
I hope that someone on this site can school me on this.
Thanks
Mr Rusty

[NorthWest]

If you know the road number (listed on the side of the cab) and the railroad, it is easy.

Find the railroad here, and then find its reporting mark: http://en.wikipedia.org/wiki/List_of_reporting_marks

Then, go to a site like http://www.rrpicturearchives.net/. If you click on the "search" link on the menu at left, there is an option to do a locomotive search. Type in the road number, and the railroad's reporting marks, and it will tell you the type of locomotive. 

[Mr.Rusty]

Thanks for the help very much appreciated.

[ndbprr]

Kalmbach makes two books "The Diesel Spotters Guide" and "The Contemporary Diesel Spotters Guide" that show and tell the differences as well as who bought them. Invaluable aids.