diff --git a/cave_data/1623-41.html b/cave_data/1623-41.html
index d9bf1d6d8..9f88f90ea 100644
--- a/cave_data/1623-41.html
+++ b/cave_data/1623-41.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- This file is generated by troggle on Oct. 11, 2023, 12:18 a.m. UTC using the form documented at /handbook/survey/caveentry.html -->
+<!-- This file is generated by troggle on Oct. 11, 2023, 1:42 p.m. UTC using the form documented at /handbook/survey/caveentry.html -->
 <!-- Only put one cave in this file -->
 <!-- If you edit this 1623-nnn.html 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
@@ -10,7 +10,7 @@ though, you do not need to do a data import as it happens automatically -->
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
 </head>
 <body>
-<b>This file is generated by troggle</b> on Oct. 11, 2023, 12:18 a.m. UTC using the form documented at
+<b>This file is generated by troggle</b> on Oct. 11, 2023, 1:42 p.m. UTC using the form documented at
 the form documented at 
 <a href="/handbook/survey/caveentry.html">handbook/survey/caveentry.html</a>
 <br>
@@ -40,8 +40,8 @@ code used in the Austrian kataster e.g '1/S +' - https://expo/.survex.com/katast
 
 <entrance>
   <entranceslug>1623-41a</entranceslug><!-- Internal ID to refer to each entrance instance in the entrance files (typically the same as that filename (e.g. 1623-161c). Matches the 'slug' field in the entrance file -->
-  <!-- DEBUG  1623-41+1623-41a 'Z' =a= -->
-  <letter>a</letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
+  <!-- DEBUG  1623-41+1623-41a 'Z' == -->
+  <letter></letter><!--Leave blank for single-entrance cave. If there is more than one entrace then the letter needs to be given. Generally matches the entranceslug ID.  -->
 </entrance>
 
 <entrance>
diff --git a/entrance_data/1623-41a.html b/entrance_data/1623-41a.html
index a8ca6a52a..84d2f7c72 100644
--- a/entrance_data/1623-41a.html
+++ b/entrance_data/1623-41a.html
@@ -1,19 +1,31 @@
 <!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 Oct. 11, 2023, 1:42 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 Oct. 11, 2023, 1:42 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>1623-41a</slug>
+<slug>1623-41a</slug> <!-- one entrance and one slug per entrance_data file -->
 <name></name>
 <entrance_description></entrance_description>
 <explorers></explorers>
 <map_description></map_description>
 <location_description></location_description>
+<lastvisit></lastvisit>
 <approach></approach>
 <underground_description></underground_description>
 <photo></photo>
@@ -26,7 +38,7 @@
                       S? = Spit (?),
                       U  = Unmarked,
                       ?  = Unknown" -->
-<marking></marking> 
+<marking>P?</marking> 
 <marking_comment></marking_comment>
 <!-- findability options: ? = To be confirmed ...,
                           S = Surveyed,
@@ -35,11 +47,13 @@
 <findability>S</findability>
 <findability_description></findability_description>
 <alt>1621m</alt>
-<northing>81244</northing>
-<easting>35827</easting> 
-<tag_station></tag_station>
-<exact_station>1623.p041ax</exact_station>
-<other_station>1623.p041a</other_station>
+<northing></northing>
+<easting></easting> 
+<lat_wgs84></lat_wgs84> 
+<long_wgs84></long_wgs84> 
+<tag_station>1623.p41a</tag_station>
+<exact_station></exact_station>
+<other_station></other_station>
 <other_description>station at entrance 41a, left side of main entrance</other_description>
 <bearings></bearings>
 <url></url>
