USGS
Bench Mark
"DW 4879"

ca. 1898

Jerry Penry
September 26, 2015

The bench mark at this location was established by USGS as a copper bolt in a rock outcropping along the west side of the Burlington Railroad. In 1934, surveyors of USC&GS found the monument, but it was not found in 1992 after a thorough search was made. A new bench mark consisting of a bronze disk with the National Geodetic Survey markings was established and designated "DW 4879 Reset 1992". The NGS datasheet states that the bench was reestablished in the general area, but there is no mention as to whether the original drill hole was found and used. Recovered by Dave Ingram, Kurt Luebke and Jerry Penry.

The original USGS 30-minute quad sheet showing the location of the bench mark north of Pringle.

The original USGS description.

The arrow points to the location of the reestablished bench mark.

The arrow marks the location of the bench mark. The former railroad grade, now Mickelson Trail, and Highway 385 are at right.

The NGS bronze disk placed in 1992.

Close up of the NGS disk.

Other Deadwood Datum Bench Marks

© Jerry Penry 2015