+Zinnware Posted May 26, 2003 Share Posted May 26, 2003 I found a Benchmark that does not appear in the database. This USGS disk is designated as T.T. 47K. 1930. It was located at N 41 22.010 W 78 08.821. How do I find more about this? Quote Link to comment
ArtMan Posted May 26, 2003 Share Posted May 26, 2003 This comes up several times a month in this forum. Not all extant benchmarks are in the NGS database, from which the database on this web site is derived. There is an explanation on the benchmark home page under the heading, "I found a benchmark, but it isn't in your database. Why?" Quote Link to comment
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