Geomorph B9: Total Blockage

I thought I wasn't doing enough rough-hewn walls in the geomorphs. This is mainly because I want the outer edges to be straight, not ragged, and for a while I couldn't figure out how to mix straight and ragged lines.

But this entry into the B-series geomorphs fixes that imbalance with a passage way that's been completely blocked off by a huge pile of boulders. Explorers are going to have to work hard to get past this obstacle... Also on this geomorph is another feature I don't use often enough: square rooms that are aligned at a 45 degree angle to the standard compass directions.