Dumfries and Galloway
Two nice post cards showing the castle pretty much as it is today. Here's the link to my previous post including quite a few photos and some information.
Above. Post card (1900)showing the gatehouse, moat and Nithsdale hall.
Above. Aerial photo showing the immense earthworks surrounding the castle.
The photo shown above, gives a rare sight of the earthworks surrounding the castle, including the single huge bank and the moat (drained in this photo)
The Canmore website has some great photos of the castle, as well as loads of additional information.
The Historic Scotland website also has loads of important information on the castle.