http://sli.mg/wtAu7n
Note that Chappell Road in the pic is currently 36th Street
You can find the map I screenshotted here:
https://www.loc.gov/resource/g3851bm.gct00131c/?sp=24
You can find & track all these small branches coming from Broad Branch. These have been turned into drainage/sewage when the land got developed. High probabability you can walk from CPP to Tenleytown Metro station during the day without seeing daylight once.
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PQhonest ago
I've seen posts wanting to figure out "CumPanda". Here's a theory related to this tunnel information:
There's even more "CumPanda" on the @cboutlier thread: http://archive.is/pFzR4 "Cum" means "with" in latin. https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=cum%20in%20latin. Alefantis et al. seem to have a certain penchant for using latin.
Theory: "CumPanda" means "with panda" and refers to a tunnel near or under the National Zoo. Would be an easy draw to get kids to enter a tunnel that leads to or gets near a Panda exhibit.
Question: do the tunnel maps show any connection to the National Zoo? https://nationalzoo.si.edu/visit/zoo-map
Sentastixc ago
Yes, there are tunnels underneath the zoo http://www.hscl.cr.nps.gov/insidenps/report.asp?STATE=DC&PARK=ROCR&STRUCTURE=&SORT=3&RECORDNO=201