Hudson
Valley Ruins - provides a record of historic and distinctive architecture
threatened by development, vandals, and time and exposure to the elements.
Infiltration
- zine about going places you're not supposed to go, like underground tunnels,
abandoned buildings, rooftops and other off-limits areas.
Subterranea
Britannica - devoted to the study and investigation of man-made and
man-used underground places.
SUV
- Suburban Underground Vadders - group based in South-Central Texas.
Features draining, abandoned buildings, and repelling combined with urban
exploration.