11 Professional Land Surveyors of Oregon | www.plso.org Featured Article An example of my typical prism and target setup at a different corner some years before. On June 12, 2019, Tony, Jim, and I continued to chain east from the line tree and within five feet of the record distance (223 feet) we found ourselves beside a 56-inch alpine fir, which turned out to be Campbell’s 1891 BT.
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