<HTML dir=ltr><HEAD><TITLE>Re: Cavern in Feet</TITLE>
<META http-equiv=Content-Type content="text/html; charset=unicode">
<META content="MSHTML 6.00.3790.2954" name=GENERATOR></HEAD>
<BODY>
<DIV id=idOWAReplyText92824 dir=ltr>
<DIV dir=ltr><FONT size=2>I could make some pedantic arguments... but I doubt anyone is interested.</FONT></DIV>
<DIV dir=ltr><FONT size=2></FONT> </DIV>
<DIV dir=ltr><FONT size=2>But I'll comment on:</FONT></DIV><FONT size=2>
<DIV dir=ltr><BR>> In order for the difference to matter wouldn't you have to be using<BR>> fixed points using _both_ kinds of feet in the same survey? And<BR>> wouldn't that never happen, because each state/region chooses either<BR>> survey feet or international feet for their legal coordinates, not<BR>> both?</DIV>
<DIV dir=ltr> </DIV>
<DIV dir=ltr>But the decision changes at state boundries (as can the refernce elevation!) so a stateline cave would have issues...</DIV>
<DIV dir=ltr>Reducing control points in both states to the same coordinate system would be needed for any adjustment to the control points.</DIV>
<DIV dir=ltr>(Although I admit this is theoretical, since I'm not aware of a significant cave that matches this.)</DIV>
<DIV dir=ltr> </DIV>
<DIV dir=ltr>> What would be an actual cave-surveying situation where it would matter?<BR></DIV>
<DIV dir=ltr>Keeping the data in a real measurement like meters, and converting it as needed for the agency(s) involved.</DIV>
<DIV dir=ltr>(Since historicly some states have even changed their minds...)</DIV>
<DIV dir=ltr> </DIV></FONT></DIV></BODY></HTML>