diff --git a/handbook/survey/datamgt.html b/handbook/survey/datamgt.html
index 015baae07..cf8f9f3b6 100644
--- a/handbook/survey/datamgt.html
+++ b/handbook/survey/datamgt.html
@@ -39,8 +39,8 @@ of unfinished underground leads (which we call
record what has and has not been investigated. Each QM must have a unique id, and information
stored about it must be easily accessible to future explorers of the same area.
Similarly, on
-the surface, a "prospecting map" showing which entrances have been investigated needs to be
-produced and updated at least after every expedition, if not more frequently. We call this "essentials.gpx" because it stops people getting lost.
+the surface, aprospecting map showing which entrances have been investigated needs to be
+produced and updated at least after every expedition, if not more frequently. This is the "entrances.gpx" file.
When we have hundreds of explored shafts, and thousands of potential holes on the plateau, it is absolutely essential that we record holes we have already looked at.
@@ -52,7 +52,5 @@ updated as "Trog
a revised system for cave data management" in 2020.
-Next page - 'Methods - Underground?'
-
-
+