xyHt magazine’s April 2024  issue focuses on land surveying by looking at changes above ground and an interesting survey below ground. 

As always, if you don’t have a subscription to our print edition, or if someone else in the office has snaffled your copy, don’t fret, here is the digital edition. Click here or on the cover to the right, to view the xyHt April 2024 issue of xyHt magazine; or better yet, click here to have us send you a free copy of the print issue.

Here are some highlights:  

Under Louisville When the Mega Cavern under Kentucky’s largest city needed to be surveyed, the owners turned to surveying company Qk4, Inc., for an ALTA/NSPS Land Title Survey to define its underground limits. 

Datum Changes The National Geodetic Survey has been working to replace NAD 83 and NAVD 88 for quite some time now. As the new datum is getting near, here’s what surveyors need to know.  

Virtual Highways Urban mobility in Europe gets a much-needed boost as cities develop digital twins for their road networks.