Designation flags in DF memory

   00100000001010001000001000000000 <- obsidian, far away from magma flow
   00100000001001101000001000000000 <- obsidian, near magma flow
   11100000001001101000001000000000 <- obsidian, near magma flow
   00100000001010101000000000000000 <- obsidian, near magma flow
   00100000001010001000000000000000 <- obsidian, next to magma flow
   11100000001001101000000000000000 <- obsidian, next to magma flow
   00100000001001101000000000000000 <- obsidian, next to magma flow
   00100100001010010100000000000111 <- obsidian, next to magma flow
   11100100001001110100000000000111 <- obsidian, next to magma flow
   00000000000010101000000000000000 <- damp loam wall, next to murky pool
   00000000000100001000000000000000 <- damp loam wall, next to murky pool
   00000000000000101000000000000000 <- damp loam wall, next to murky pool
   00000000000011001000000000000000 <- damp loam wall, next to murky pool
   11000000000001101000000000000000 <- damp loam wall, next to murky pool
   11000000000001101000001000000000 <- undiscovered loam wall, close to murky pool
   00000000000011001000001000000000 <- undiscovered loam
   11000100000011110100000000000111 <- channel with 7/7 water
   11000100000011110100000000000110 <- murky pool, 6/7
   11000100000010010100000000000110 <- murky pool, 6/7
   11000100000010010100000000000111 <- murky pool, 7/7
   11000100000011110100000000000111 <- murky pool, 7/7
   11000100000010010100000000000111 <- murky pool, 7/7
   11000100000010110100000000000111 <- murky pool, 7/7
   11000100000000110100000000000111 <- murky pool, 7/7
   11000100000001110100000000000111 <- murky pool, 7/7
   00100100001010010100000000000111 <- open space, lava 7/7
   00100100001001110100000000000111 <- open space, lava 7/7
   11100100001001110100000000000111 <- open space, lava 7/7
   00100100001010110100000000000111 <- open space, lava 7/7
   00000000000010101001000000010000 <- rough-hewn claystone wall, desig. for mining
   00000000000010101001000000110000 <- rough-hewn claystone wall, desig. for channeling
   00000000000010101001000001100000 <- rough-hewn claystone wall, desig. for upward stairs
   00000000000010101001000000100000 <- rough-hewn claystone wall, desig. for up/down stairs
   00000000000010101001000001000000 <- rough-hewn claystone wall, desig. for up ramp
   00000000000010101001000001010000 <- rough-hewn claystone wall, desig. for down stairs
   00000000000010101001000010000000 <- rough-hewn claystone wall, desig. for smooth stones
   00000000000000110101000000000000 <- chestnut tree
   00000000000000110101000000010000 <- chestnut tree, designated for chopping
   00000000000000110101000000000000 <- shrub
   00000000000000110101000000010000 <- shrub, designated for gathering
     ^       ^           ^     |^^^
     warm?   warm?       Hidden|Flow Size
        ^            ^^^^
        liquid       Soil/Rock Layer ID
                    ^      ^^^^
                    Light  Desig. for activities (mining/shrubbing/stairing/etc.)
                   ^
                   Sub-terr.
                  ^
                  Outside
              ^^^^
              Unknown ID
            ^
            thought to be damp, but isn't
      ^
      Mossy