Try this, see if it adds a lazy rectangle to your map.
L 1364.4553, -3127.2739, 47.2859, 574.9011, -3107.7009, 69.6291, 0, 0, 0
L 579.0354, -3108.1860, 78.1127, 601.3264, -2866.5166, 107.0045, 0, 0, 0
L 601.3264, -2866.5166, 107.0045, 1337.9830, -2865.0004, 51.2516, 0, 0, 0
L 1337.9830, -2865.0004, 51.2516, 1360.4239, -3125.1281, 46.1748, 0, 0, 0
I sat pretty much in the eastern part of lazy rectangle.
I did not kill:
orcs
young ronin
cistern asp
Dervish cutthroats
and voila.