This is an experimental fortress with a magma defense system called GRID. The plan is to cover the entire area with GRID units, each of which can drop magma precisely on top of intruders.
Construction is slow with a population of 198, but on the other hand extra dwarfpower has sped up things a bit.
( 1009 Late Winter → onwards )
The control room for GRID operation. The bedrooms one level below are for the dedicated GRID team, but they are not in use, as the system is still incomplete. - Duriel
There are 2 comments for this map series, last post 2010-10-12
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Don't have Flash?
You can download the compressed map file: 2010-10/duriel-Crystalroses-region1-1010-6193.fdf-map but you will need the .NET version of SL's DF Map Compressor to convert to the .PNG image format.