diff --git a/docs/overview.md b/docs/overview.md
index 1f179a77c..8af4b1368 100644
--- a/docs/overview.md
+++ b/docs/overview.md
@@ -356,6 +356,40 @@ appsettings: |-
       }
     }
   }
+
+# Location source
+# Location data will be deployed into /app/location-sources/json .
+locationSources:
+  enabled: false
+#  files:
+#  - fileName: custom-locations-1.json
+#    locations: |-
+#      {
+#        "east": {
+#          "Latitude": "35.68",
+#          "Longitude": "139.77",
+#          "Name": "eastdc"
+#        },
+#        "west": {
+#          "Latitude": "34.6939",
+#          "Longitude": "135.5022",
+#          "Name": "westdc"
+#        }
+#      }
+#  - fileName: custom-locations-2.json
+#    locations: |-
+#      {
+#        "north": {
+#         "Latitude": "35.68",
+#          "Longitude": "139.77",
+#          "Name": "northdc"
+#        },
+#        "south": {
+#          "Latitude": "34.6939",
+#          "Longitude": "135.5022",
+#          "Name": "southdc"
+#        }
+#      }
 ```
 
 The video in below is demonstration to install Carbon Aware SDK via Helm. Note that installing the SDK from local directory ( ~/github-forked/carbon-aware-sdk/helm-chart ), not an OCI container.
diff --git a/helm-chart/Chart.yaml b/helm-chart/Chart.yaml
index be8609521..fadfb8f70 100644
--- a/helm-chart/Chart.yaml
+++ b/helm-chart/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 1.0.0
+version: 1.1.0
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to
diff --git a/helm-chart/templates/configmap.yaml b/helm-chart/templates/configmap.yaml
new file mode 100644
index 000000000..c314df0e0
--- /dev/null
+++ b/helm-chart/templates/configmap.yaml
@@ -0,0 +1,13 @@
+{{- if .Values.locationSources.enabled }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: location-sources
+  namespace: {{ $.Release.Namespace }}
+  labels:
+    {{- include "carbon-aware-sdk.labels" . | nindent 4 }}
+data:
+  {{- range .Values.locationSources.files }}
+  {{ .fileName }}: {{- toYaml .locations | nindent 4 }}
+  {{- end }}
+{{- end }}
diff --git a/helm-chart/templates/deployment.yaml b/helm-chart/templates/deployment.yaml
index 3a9891b36..cec413296 100644
--- a/helm-chart/templates/deployment.yaml
+++ b/helm-chart/templates/deployment.yaml
@@ -46,6 +46,11 @@ spec:
               mountPath: /app/appsettings.json
               subPath: appsettings.json
               readOnly: true
+            {{- if .Values.locationSources.enabled }}
+            - name: location-sources
+              mountPath: /app/location-sources/json
+              readOnly: true
+            {{- end }}
           livenessProbe:
             httpGet:
               path: /health
@@ -60,6 +65,16 @@ spec:
         - name: appsettings
           secret:
             secretName: appsettings
+        {{- if .Values.locationSources.enabled }}
+        - name: location-sources
+          configMap:
+            name: location-sources
+            items:
+            {{- range .Values.locationSources.files }}
+            - key: {{ .fileName }}
+              path: {{ .fileName }}
+            {{- end }}
+        {{- end }}
       {{- with .Values.nodeSelector }}
       nodeSelector:
         {{- toYaml . | nindent 8 }}
diff --git a/helm-chart/values.yaml b/helm-chart/values.yaml
index 3d32c9266..452ef6a21 100644
--- a/helm-chart/values.yaml
+++ b/helm-chart/values.yaml
@@ -108,3 +108,37 @@ appsettings: |-
       }
     }
   }
+
+# Location source
+# Location data will be deployed into /app/location-sources/json .
+locationSources:
+  enabled: false
+#  files:
+#  - fileName: custom-locations-1.json
+#    locations: |-
+#      {
+#        "east": {
+#          "Latitude": "35.68",
+#          "Longitude": "139.77",
+#          "Name": "eastdc"
+#        },
+#        "west": {
+#          "Latitude": "34.6939",
+#          "Longitude": "135.5022",
+#          "Name": "westdc"
+#        }
+#      }
+#  - fileName: custom-locations-2.json
+#    locations: |-
+#      {
+#        "north": {
+#         "Latitude": "35.68",
+#          "Longitude": "139.77",
+#          "Name": "northdc"
+#        },
+#        "south": {
+#          "Latitude": "34.6939",
+#          "Longitude": "135.5022",
+#          "Name": "southdc"
+#        }
+#      }
diff --git a/src/CarbonAware.LocationSources/src/LocationSource.cs b/src/CarbonAware.LocationSources/src/LocationSource.cs
index de96cca8a..793b09dd8 100644
--- a/src/CarbonAware.LocationSources/src/LocationSource.cs
+++ b/src/CarbonAware.LocationSources/src/LocationSource.cs
@@ -109,7 +109,7 @@ private IEnumerable<LocationSourceFile> DiscoverFiles()
             return Array.Empty<LocationSourceFile>();
         }
         _logger.LogInformation($"{files.Count()} files discovered");
-        return files.Select(x => x.Substring(pathCombined.Length + 1)).Select(n => new LocationSourceFile { DataFileLocation = n });
+        return files.Select(x => x.Substring(pathCombined.Length + 1)).Where(n => !n.StartsWith("..")).Select(n => new LocationSourceFile { DataFileLocation = n });
     }
 
     private void AddToLocationMap(string key, NamedGeoposition data, string sourceFile, Dictionary<string, int> keyCounter)