diff --git a/entrance_data/1623-164.html b/entrance_data/1623-164.html
index c36523032..f21394be9 100644
--- a/entrance_data/1623-164.html
+++ b/entrance_data/1623-164.html
@@ -1,23 +1,33 @@
 <!DOCTYPE html>
 <!-- Only put one entrance in this file -->
-<!-- If you edit this file, make sure you update the websites database -->
+<!-- This file is generated by troggle on July 26, 2024, 11:36 p.m. UTC using the form documented at handbook/survey/ententry.html -->
+<!-- If you edit this file by hand, and manually upload it to the server using git,
+make sure you update the database by doing a full data import. If you edit it using the online form
+though, you do not need to do a data import as it happens automatically -->
+
+    <!-- See http://expo.survex.com/handbook/survey/caveentryfields.html for current details on filling in this form -->
+    <!-- there is 1 required field: slug. The entrance will not appear without that. -->
+    <!-- ALWAYS use &uuml; for u+Umlaut and &ouml; for o+umlaut eg H&ouml;hle for Hohle and Gl&uuml;ck for Gluck-->
+
 <html lang="en">
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
 </head>
 <body>
+<b>This file is generated by troggle</b> on July 26, 2024, 11:36 p.m. UTC using the form documented at 
+<a href="/handbook/survey/ententry.html">handbook/survey/ententry.html</a>
+<br>
 <entrance>
 <non_public>False</non_public>
-
-
+<slug>1623-164</slug> <!-- one entrance and one slug per entrance_data file -->
 <name></name>
 <entrance_description></entrance_description>
 <explorers></explorers>
-<map_description></map_description>
 <location_description>On plateau, beyond <a href="198/198.html">B11</a> (1623/198). This is a snow-choked shaft next to the very large snow-choked shaft, which has always been blocked with snow and was therefore not explored or numbered for many years, but is now <a href="/1623/189/189.htm">189</a>.</location_description>
+<lastvisit></lastvisit>
 <approach></approach>
 <underground_description></underground_description>
-<photo></p><div class="centre"><a href="others/l/189164.htm"><img src="others/t/189164.jpg" width="121" height="176" alt="entrance picture - 87k jpeg" /></a><p>164 entrance (left of centre) seen over 189 entrance.</p></div><p></photo>
+<photo></p><div class="centre"><a href="/1623/others/l/189164.htm"><img src="/1623/others/t/189164.jpg" width="121" height="176" alt="entrance picture - 87k jpeg" /></a><p>164 entrance (left of centre) seen over 189 entrance.</p></div><p></photo>
 <!-- marking options: P  = Paint,
                       P? = Paint (?),
                       T  = Tag,
@@ -36,14 +46,12 @@
 <findability>S</findability>
 <findability_description></findability_description>
 <alt></alt>
-<northing></northing>
-<easting></easting> 
+<lat_wgs84></lat_wgs84> 
+<long_wgs84></long_wgs84> 
 <tag_station>1623.p164tag</tag_station>
-<exact_station></exact_station>
 <other_station>1623.p164rig</other_station>
 <other_description></other_description>
-<bearings></bearings>
-<url></url>
+<bearings></bearings> <!-- this is now read-only and not editable on the forms-->
 </entrance>
 </body>
 </html>
