diff --git a/core/views/survex.py b/core/views/survex.py
index 3ab7dd9..7ac206a 100644
--- a/core/views/survex.py
+++ b/core/views/survex.py
@@ -18,7 +18,7 @@ from django.views.decorators.csrf import ensure_csrf_cookie
 import troggle.settings as settings
 from troggle.core.models.logbooks import LogbookEntry
 from troggle.core.models.caves import Cave
-from troggle.core.models.survex import SurvexFile, SurvexBlock
+from troggle.core.models.survex import SurvexFile, SurvexBlock, SurvexDirectory
 from troggle.core.models.wallets import Wallet
 from troggle.core.utils import only_commit
 from troggle.parsers.survex import parse_one_file
@@ -642,6 +642,27 @@ def survexcaveslist(request):
         },
     )
 
+def survexdir(request):
+    """report on all the SurvexDirectory objects
+    We are trying to find out how mismatches have crept in.
+    """
+    
+    sds = SurvexDirectory.objects.all().order_by("cave")
+    for sd in sds:
+        sd.primarybad = True
+        if f"{sd.primarysurvexfile}".startswith(str(sd.path)):
+            sd.primarybad = False
+            
+        sd.cavebad = True
+        munge = f"caves-{sd.cave}".lower()
+        if str(sd.path).lower().replace("/","-").startswith(munge):
+            sd.cavebad = False
+           
+        sd.pathbad = True
+        if Path(settings.SURVEX_DATA, f"{sd.primarysurvexfile}.svx").is_file():
+            sd.pathbad = False
+    return render(request, "survexdir.html", {"survexdirs": sds})
+
 
 def survexcavesingle(request, survex_cave):
     """parsing all the survex files of a single cave and showing that it's consistent and can find all
diff --git a/parsers/survex.py b/parsers/survex.py
index cebeb91..52ecc70 100644
--- a/parsers/survex.py
+++ b/parsers/survex.py
@@ -68,6 +68,8 @@ class SurvexLeg:
 def IdentifyCave(cavepath):
     """Given a file path for a survex file, or a survex-block path,
     return the cave object
+    
+    This is clearly getting it badly wrong, see /survexdirs report.
     """
     caveslist = GetCaveLookup()
     if cavepath.lower() in caveslist:
@@ -1171,6 +1173,8 @@ class LoadingSurvex:
         it sets the primarysurvexfile. This is correct as it should be set on the first file
         in the directory, where first is defined by the *include ordering. Which is what we
         are doing.
+        
+        This does NOT set the current cave id in the SurvexDirectory, that happens later
         """
         if not headpath:
             return self.svxdirs[""]
diff --git a/templates/controlPanel.html b/templates/controlPanel.html
index bc71ae2..b50821c 100644
--- a/templates/controlPanel.html
+++ b/templates/controlPanel.html
@@ -25,6 +25,7 @@
 <li><a href="/aliases/2023">Expoer name aliases</a> -short names recognised by troggle
 <li><a href="/dataissues">Data Issues on Imports</a> - warnings and errors from the recent data import
 <li><a href="/survexfilewild/2023">Wild survex files</a> - survex files contianing blocks with no related wallet
+<li><a href="/survexdir">Survex Directories</a> - Every Cave has an associated directory and a Primary survex file
 <li><a href="/surveximport">Survex import record</a> - indented *include and begin/end tree<br /><li><a href="/survexdebug">Survex debug report</a> - warnings and  details<br />
 <li><a href="/therionissues">Therion Import issues</a> - warnings from the recent data import<br /><br />
 <li><a href="/admin/">Django admin</a> - Deep magic access to all models and data
diff --git a/templates/survexdir.html b/templates/survexdir.html
new file mode 100644
index 0000000..7600077
--- /dev/null
+++ b/templates/survexdir.html
@@ -0,0 +1,22 @@
+<!-- svxcavesingle.html - this text visible because this template has been included -->
+{% extends "base.html" %}
+{% block title %}List of survex directories{% endblock %}
+{% block content %}
+
+{% autoescape off %}
+<h1>SurvexDirectory objects</h1>
+{% endautoescape %}
+
+
+<table>
+<tr><th>Cave</th><th>CaveID</th><th>Path</th><th>Primary</th></tr>
+{% for sd in survexdirs %}
+    <tr>
+        <td><span {% if sd.cavebad %} style="color:red" {% endif %}> {{sd.cave}}</span></td>       
+        <td><em>{{sd.cave.id}}</em></td>
+        <td>{{sd.path}}</td>
+        <td><a href="/survexfile/{{sd.primarysurvexfile}}"><span {% if sd.pathbad %} style="color:red" {% endif %}>{{sd.primarysurvexfile}}.svx</span></a><span {% if sd.primarybad %} style="color:blue"> <b>MISMATCH</b> {% endif %}</span></td>
+    </tr>
+{% endfor %}
+</table>
+{% endblock %}
diff --git a/urls.py b/urls.py
index f9e1b84..513a1eb 100644
--- a/urls.py
+++ b/urls.py
@@ -182,6 +182,8 @@ trogglepatterns = [
     path('controlpanel',       controlpanel,  name="controlpanel"),
 
 # The survexfile pages
+    path('survexdir',                     survex.survexdir,  name="survexdir"),
+    
     path('survexfile',                    survex.survexcavesingle, {'survex_cave': ''},   name="survexcavessingle"),
     path('survexfile/',                   survex.survexcavesingle, {'survex_cave': ''},   name="survexcavessingle"),
     path('survexfile/caves',              survex.survexcaveslist,     name="survexcaveslist"),