Summary

This photo, taken in August, 2010, shows what appears to be an obelisk monument, atop the present-day earthen cover to the west of Btty Kellogg, Pit B (and between that pit and Btty Lincoln Pit B). In fact, this structure is a ventilation shaft, or chimney, which connects to the underground galleries. Its underground end comes out in the ceiling of the northern end of the central north-south gallery that was one of the original (1896) magazines serving the mortar batteries.

When it was constructed, this shaft showed only about 6 inches of its tip above ground. This indicates that about 10 to 20 feet of earthen cover, which originally protected the magazines from enemy shell fire, has been scraped away from the top of the battery complex, during the redevelopment of the site for apartments and municipal uses. Thomas Vaughan (principal site historian) reports that local sources claim there was once a geodetic benchmark (or survey disk) at the peak of this monument, but this mark does not appear in present-day geodetic databases, and is unconfirmed.

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

You are free:

• to share – to copy, distribute and transmit the work
• to remix – to adapt the work

Under the following conditions:

• attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

https://creativecommons.org/licenses/by-sa/3.0CC BY-SA 3.0 Creative Commons Attribution-Share Alike 3.0 truetrue