topic Re: When brass caps get replaced? in Coordinate Reference Systems Questions https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858801#M1551 <HTML><HEAD></HEAD><BODY><P>Do you mean surveying control marks or bench marks? I assume that it depends on whether they were ever surveyed to the standard. It's possible the marks have been removed or destroyed. You can see if there should be anything by using the <A href="http://www.ngs.noaa.gov/cgi-bin/datasheet.prl">NGS datasheet page</A>. The descriptions will also describe how to find them and when last found.</P></BODY></HTML> Mon, 18 Aug 2014 23:46:07 GMT MelitaKennedy 2014-08-18T23:46:07Z When brass caps get replaced? https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858800#M1550 <HTML><HEAD></HEAD><BODY><P>I visited four peaks in Colorado and found only one brass cap. Is there a replacement policy and is it there a requirement for brass caps for peaks? Thank You</P></BODY></HTML> Sun, 17 Aug 2014 16:53:49 GMT https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858800#M1550 bradtatham 2014-08-17T16:53:49Z Re: When brass caps get replaced? https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858801#M1551 <HTML><HEAD></HEAD><BODY><P>Do you mean surveying control marks or bench marks? I assume that it depends on whether they were ever surveyed to the standard. It's possible the marks have been removed or destroyed. You can see if there should be anything by using the <A href="http://www.ngs.noaa.gov/cgi-bin/datasheet.prl">NGS datasheet page</A>. The descriptions will also describe how to find them and when last found.</P></BODY></HTML> Mon, 18 Aug 2014 23:46:07 GMT https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858801#M1551 MelitaKennedy 2014-08-18T23:46:07Z Re: When brass caps get replaced? https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858802#M1552 <HTML><HEAD></HEAD><BODY><P>+1 for surveying control marks or bench marks?</P><P></P><P>Bench marks</P><P><IMG alt="OS_Benchmark_Bolt_St_Botolphs_church_Boston_-_geograph.org.uk_-_712831.jpg" class="jive-image image-3" height="155" src="http://upload.wikimedia.org/wikipedia/commons/7/7d/OS_Benchmark_Bolt_St_Botolphs_church_Boston_-_geograph.org.uk_-_712831.jpg" style="width: 207px; height: 155.25px;" width="207" /></P><P>Or even:</P><P><IMG alt="169595_90321e40.jpg" class="image-4 jive-image" height="156" src="http://s0.geograph.org.uk/photos/16/95/169595_90321e40.jpg" style="width: 208px; height: 156px;" width="208" /></P><P><A href="http://upload.wikimedia.org/wikipedia/commons/7/7d/OS_Benchmark_Bolt_St_Botolphs_church_Boston_-_geograph.org.uk_-_712831.jpg" title="http://upload.wikimedia.org/wikipedia/commons/7/7d/OS_Benchmark_Bolt_St_Botolphs_church_Boston_-_geograph.org.uk_-_712831.jpg">http://upload.wikimedia.org/wikipedia/commons/7/7d/OS_Benchmark_Bolt_St_Botolphs_church_Boston_-_geograph.org.uk_-_712831.jpg</A></P><P>Surface marks:</P><P><IMG alt="1904726_da00c8d1.jpg" class="jive-image image-2" height="154" src="http://s0.geograph.org.uk/geophotos/01/90/47/1904726_da00c8d1.jpg" style="width: 205px; height: 153.75px;" width="205" /></P><P>(N.B I got these images off the <A href="http://www.geograph.org.uk/">internet</A>)</P><P></P><P>The two types have different information written on them and in the UK look different...I know in the UK they are now being left until they are destroyed by erosion or the land being redeveloped. not much help as you're looking at Colorado... <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span> but I guess they could have been destroyed or could have not been built.</P></BODY></HTML> Tue, 19 Aug 2014 20:56:06 GMT https://community.esri.com/t5/coordinate-reference-systems-questions/when-brass-caps-get-replaced/m-p/858802#M1552 SimonKettle 2014-08-19T20:56:06Z