187 miles and miles

SCP-187 was exposed to SCP-015, with the help of team Zeta-9. SCP-187 reported only slight differences in the structure, until she opened a door leading outside of SCP-015. SCP-187 reported a hallway of pipes stretching for “miles and miles.” SCP-187 stated that she was not able to see the other end of the hall, but that it “seemed to branch off to the sides, with lots of side hallways.” Zeta-9 team members reported no unusual behavior within SCP-015, and that the door opened into open air, with no hallway of any kind visible.