diff --git a/cave_data/1623-2023-MM-01.html b/cave_data/1623-2023-MM-01.html
index f6973a2fe..cffe09bf2 100644
--- a/cave_data/1623-2023-MM-01.html
+++ b/cave_data/1623-2023-MM-01.html
@@ -1,5 +1,5 @@
 <!DOCTYPE html>
-<!-- This file is generated by troggle on July 13, 2023, 8:59 p.m. UTC using the form documented at /handbook/survey/caveentry.html -->
+<!-- This file is generated by troggle on July 13, 2023, 9:02 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 July 13, 2023, 8:59 p.m. UTC using the form documented at
+<b>This file is generated by troggle</b> on July 13, 2023, 9:02 p.m. UTC using the form documented at
 the form documented at 
 <a href="/handbook/survey/caveentry.html">handbook/survey/caveentry.html</a>
 <br>
diff --git a/entrance_data/1623-2023-MM-01.html b/entrance_data/1623-2023-MM-01.html
new file mode 100644
index 000000000..56eda8936
--- /dev/null
+++ b/entrance_data/1623-2023-MM-01.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<!-- Only put one entrance in this file -->
+<!-- This file is generated by troggle on July 13, 2023, 9:02 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 13, 2023, 9:02 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>1623-2023-MM-01</slug> <!-- one entrance and one slug per entrance_data file -->
+<name>2023-MM-01</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>
+<!-- marking options: P  = Paint,
+                      P? = Paint (?),
+                      T  = Tag,
+                      T? = Tag (?),
+                      R  = Retagged,
+                      S  = Spit,
+                      S? = Spit (?),
+                      U  = Unmarked,
+                      ?  = Unknown" -->
+<marking>U</marking> 
+<marking_comment></marking_comment>
+<!-- findability options: ? = To be confirmed ...,
+                          S = Surveyed,
+                          L = Lost,
+                          R = Refindable" -->
+<findability></findability>
+<findability_description></findability_description>
+<alt></alt>
+<northing></northing>
+<easting></easting> 
+<tag_station></tag_station>
+<exact_station></exact_station>
+<other_station></other_station>
+<other_description></other_description>
+<bearings></bearings>
+<url></url>
+</entrance>
+</body>
+</html>
