The locomotive water tender is located on the boiler of the locomotive.
I guess this is called the saddle tank.

Date: 2009-02-25
Owner: Gallery Administrator
Size:
Full size: 1280x856

Photo Properties
Summary  Details
Make NIKON CORPORATION Model NIKON D80
Aperture Value f/5.6 Color Space sRGB
Exposure Program Aperture Priority Flash No Flash
ISO 200 Metering Mode Multi-Segment
Shutter Speed Value 1/800 sec Digital Zoom Ratio 1
Date/Time 2009 Feb 25 08:56:48 +0000

Comments
Superb shot!
Posted by Bharat Vohra on 2009 Mar 17 21:20:34 +0000
awesome shot.
Posted by Deepak Murali on 2009 Mar 13 02:26:42 +0000