USC&GS Bench Mark
"Q 177" Jerry Penry
Back to USC&GS South Dakota Monuments
(South Dakota)
1934
May 13, 2011
Inside a manhole is an unusual location for a bench mark, but the location has most likely served to protect it. This bench mark is located near the community of Rochford, South Dakota, which is today an area of a few remaining houses. It is unclear if the USC&GS surveyors placed the protective manhole around the bench mark in 1934, but the 1938 recovery report states that it was there. Recovered by Kurt Luebke, Jenny Stukel and Jerry Penry along the Mickelson hiking trail in the central Black Hills.
The bench mark is inside the manhole at the lower right corner of the bridge.
The cover of the manhole protecting the bench mark.
The cover removed. Looking downstream on Rapid Creek.
Another view of the protective manhole.
Looking down into the manhole at the bench mark.
The bench mark disk in concrete post inside the manhole.
© Jerry Penry 2011