West Virginia actually maintains and numbers these "pipestems" under the
"Home Access Route Program" (example:
http://www.gribblenation.com/wvpics/subs/939on11n-kerr.jpg)
Before they were given to the state in the 1990s, they were "orphan
roads" that were open to the public but not maintained by any
government: http://www.legis.state.wv.us/WVCODE/Code.cfm?chap=17&art=2C
I'm not sure if this is exactly the same thing.
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