San Francisco's Kowloon Walled City plays a sludgy, noisy kind of post-metal. At times, the band brings to mind Fugazi's slower moments.
Kowloon Walled City recently released Container Ships, a collection of 7 songs that lasts about 35 minutes. If you like opening track "The Pressure Keeps Me Alive" (and you should), then you'll also dig the others.
Container Ships is available at bandcamp for the "name your price" option, so you can download the record for free or pay what you can to support the band.