diff --git a/application/views/interface_assets/footer.php b/application/views/interface_assets/footer.php
index 27ecf041..262abec5 100644
--- a/application/views/interface_assets/footer.php
+++ b/application/views/interface_assets/footer.php
@@ -583,7 +583,7 @@ function newpath(latlng1, latlng2, locator1, locator2) {
 
     var osmUrl='<?php echo $this->optionslib->get_option('option_map_tile_server');?>';
     var osmAttrib='Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors';
-    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 9, attribution: osmAttrib});
+    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 12, attribution: osmAttrib});
 
     var redIcon = L.icon({
 					iconUrl: icon_dot_url,
@@ -637,7 +637,7 @@ function showActivatorsMap(call, count, grids) {
 
     var osmUrl='<?php echo $this->optionslib->get_option('option_map_tile_server');?>';
     var osmAttrib='Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors';
-    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 9, attribution: osmAttrib});
+    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 12, attribution: osmAttrib});
 
     map.addLayer(osm);
 }
diff --git a/assets/js/leaflet/leafembed.js b/assets/js/leaflet/leafembed.js
index c0ece429..5b8e556e 100644
--- a/assets/js/leaflet/leafembed.js
+++ b/assets/js/leaflet/leafembed.js
@@ -25,7 +25,7 @@ function initmap(ShowGrid = 'No', MapTag = 'map') {
 
     // create the tile layer with correct attribution
     var osmAttrib='Map data © <a href="https://openstreetmap.org">OpenStreetMap</a> contributors';
-    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 9, attribution: osmAttrib});        
+    var osm = new L.TileLayer(osmUrl, {minZoom: 1, maxZoom: 12, attribution: osmAttrib});        
 
 	var printer = L.easyPrint({
 		tileLayer: osm,
diff --git a/assets/js/sections/gridmap.js b/assets/js/sections/gridmap.js
index b8ab1687..922397e9 100644
--- a/assets/js/sections/gridmap.js
+++ b/assets/js/sections/gridmap.js
@@ -51,7 +51,7 @@ function gridPlot(form) {
             grid_four_confirmed = data.grid_4char_confirmed;
             grid_six_confirmed = data.grid_6char_confirmed;
             var layer = L.tileLayer(jslayer, {
-                maxZoom: 9,
+                maxZoom: 12,
                 attribution: jsattribution,
                 id: 'mapbox.streets'
             });