diff --git a/settlements/admin_tools.lua b/settlements/admin_tools.lua
index 214c0ce..926e1b3 100644
--- a/settlements/admin_tools.lua
+++ b/settlements/admin_tools.lua
@@ -102,3 +102,61 @@ minetest.register_craftitem("settlements:single_building_tool", {
 		end
 	end,
 })
+
+minetest.register_craftitem("settlements:mark_location_tool", {
+	description = S("Settlements tool for marking: @1", S("Unset")),
+	inventory_image = "settlements_location_marker.png",
+	stack_max = 1,
+	
+	on_place = function(itemstack, placer, pointed_thing)
+		local meta = itemstack:get_meta()
+		local settlement_type = meta:get_string("type")
+		
+		if settlement_type == "" then
+			settlement_type = next(settlements.registered_settlements)
+		else
+			settlement_type = next(settlements.registered_settlements, settlement_type)
+			if not settlement_type then
+				settlement_type = next(settlements.registered_settlements)
+			end
+		end
+
+		meta:set_string("type", settlement_type)
+		local desc_string = S("Settlements tool for marking: @1", settlement_type)
+		meta:set_string("description", desc_string)
+		minetest.chat_send_player(placer:get_player_name(), desc_string)
+		return itemstack
+	end,
+	
+	-- Mark a settlement here, regardless of environment
+	on_use = function(itemstack, placer, pointed_thing)
+		if not minetest.check_player_privs(placer, "server") then
+			minetest.chat_send_player(placer:get_player_name(), S("You need the server privilege to use this tool."))
+			return
+		end
+		
+		local meta = itemstack:get_meta()
+		local settlement_type = meta:get_string("type")
+		local settlement_def = settlements.registered_settlements[settlement_type]
+		if not settlement_def then
+			return
+		end
+
+		local center_surface = pointed_thing.under
+		if center_surface then
+			local existing_area = settlements.settlements_in_world:get_areas_for_pos(center_surface, true, true)
+			if next(existing_area) then
+				minetest.chat_send_player(placer:get_player_name(), S("There's already a settlement at @1", minetest.pos_to_string(center_surface)))
+				return
+			end
+		
+			local name = settlement_def.generate_name(center_surface)
+			minetest.chat_send_player(placer:get_player_name(), S("Marked settlement @1 at @2", name, minetest.pos_to_string(center_surface)))
+			-- add settlement to list
+			settlements.settlements_in_world:insert_area(center_surface, center_surface,
+				minetest.serialize({name=name, discovered_by = {}, settlement_type = settlement_type}))
+			-- save list to file
+			settlements.settlements_save()
+		end
+	end,
+})
diff --git a/settlements/bookgen.lua b/settlements/bookgen.lua
index 98a3a07..9bd58c5 100644
--- a/settlements/bookgen.lua
+++ b/settlements/bookgen.lua
@@ -40,9 +40,9 @@ local half_map_chunk_size = settlements.half_map_chunk_size
 minetest.register_abm({
 	label = "Settlement book authoring",
 	nodenames = {"default:bookshelf"},
-	interval = 86400, -- daily
+	interval = 86400/2, -- twice daily
 	-- Operation interval in seconds
-	chance = 2,
+	chance = 1,
 	-- Chance of triggering `action` per-node per-interval is 1.0 / this value
 	catch_up = true,
 	-- If true, catch-up behaviour is enabled: The `chance` value is
diff --git a/settlements/textures/license.txt b/settlements/textures/license.txt
index b1961cd..27e2317 100644
--- a/settlements/textures/license.txt
+++ b/settlements/textures/license.txt
@@ -1,2 +1,3 @@
 settlements_settlement_marker.png - from https://commons.wikimedia.org/wiki/File:Map_marker_icon_%E2%80%93_Nicolas_Mollet_%E2%80%93_Small_City_%E2%80%93_Tourism_%E2%80%93_Classic.png by Nicolas Mollet under the CC-BY-SA 3.0
-settlements_building_marker.png - the preceeding file, mixed with https://commons.wikimedia.org/wiki/File:Village_image_icon.svg by Sławek Borewicz under the CC-BY-SA 3.0 license
\ No newline at end of file
+settlements_building_marker.png - the preceding file, mixed with https://commons.wikimedia.org/wiki/File:Village_image_icon.svg by Sławek Borewicz under the CC-BY-SA 3.0 license
+settlements_location_marker.png - the preceding file, mixed with https://commons.wikimedia.org/wiki/File:Map_icons_by_Scott_de_Jonge_-_embassy.svg by Scott de Jonge under the CC-BY-SA 3.0 license
\ No newline at end of file
diff --git a/settlements/textures/settlements_location_marker.png b/settlements/textures/settlements_location_marker.png
new file mode 100644
index 0000000..73942f2
Binary files /dev/null and b/settlements/textures/settlements_location_marker.png differ