diff --git a/pkg/maps.txt b/pkg/maps.txt
index 97808213..4bd827f0 100644
--- a/pkg/maps.txt
+++ b/pkg/maps.txt
@@ -1,3 +1,4 @@
 Open Topo Map	https://a.tile.opentopomap.org/$z/$x/$y.png
-Thunderforest	http://tile.thunderforest.com/outdoors/$z/$x/$y.png
 Open Street Map	http://tile.openstreetmap.org/$z/$x/$y.png
+USGS Topo	https://navigator.er.usgs.gov/tiles/tcr.cgi/$z/$x/$y.png
+USGS Imagery	https://navigator.er.usgs.gov/tiles/aerial_Imagery.cgi/$z/$x/$y