diff --git a/src/api.ts b/src/api.ts
index 5cc1982..40329ea 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -210,8 +210,8 @@ function buildMarker(marker: any): DynmapMarker {
 		dimensions: marker.dim ? marker.dim.split('x') : [16, 16],
 		icon: marker.icon || "default",
 		isHTML: marker.markup || false,
-		minZoom: marker.minzoom || undefined,
-		maxZoom: marker.maxZoom || undefined,
+		minZoom: typeof marker.minzoom !== 'undefined' && marker.minzoom > -1 ? marker.minzoom : undefined,
+		maxZoom: typeof marker.maxzoom !== 'undefined' && marker.maxzoom > -1 ? marker.maxzoom : undefined,
 		popupContent: marker.desc || undefined,
 	};
 }
@@ -244,8 +244,8 @@ function buildArea(area: any): DynmapArea {
 		x: area.x || [0, 0],
 		y: [area.ybottom || 0, area.ytop || 0],
 		z: area.z || [0, 0],
-		minZoom: area.minzoom || undefined,
-		maxZoom: area.maxZoom || undefined,
+		minZoom: typeof area.minzoom !== 'undefined' && area.minzoom > -1 ? area.minzoom : undefined,
+		maxZoom: typeof area.maxzoom !== 'undefined' && area.maxzoom > -1 ? area.maxzoom : undefined,
 		popupContent: area.desc || undefined,
 	};
 }
@@ -276,8 +276,8 @@ function buildLine(line: any): DynmapLine {
 		},
 		label: line.label || '',
 		isHTML: line.markup || false,
-		minZoom: line.minzoom || undefined,
-		maxZoom: line.maxZoom || undefined,
+		minZoom: typeof line.minzoom !== 'undefined' && line.minzoom > -1 ? line.minzoom : undefined,
+		maxZoom: typeof line.maxzoom !== 'undefined' && line.maxzoom > -1 ? line.maxzoom : undefined,
 		popupContent: line.desc || undefined,
 	};
 }
@@ -314,8 +314,8 @@ function buildCircle(circle: any): DynmapCircle {
 		label: circle.label || '',
 		isHTML: circle.markup || false,
 
-		minZoom: circle.minzoom || undefined,
-		maxZoom: circle.maxZoom || undefined,
+		minZoom: typeof circle.minzoom !== 'undefined' && circle.minzoom > -1 ? circle.minzoom : undefined,
+		maxZoom: typeof circle.maxzoom !== 'undefined' && circle.maxzoom > -1 ? circle.maxzoom : undefined,
 		popupContent: circle.desc || undefined,
 	};
 }
@@ -570,8 +570,8 @@ export default {
 					hidden: set.hide || false,
 					priority: set.layerprio || 0,
 					showLabels: set.showlabels || undefined,
-					minZoom: set.minzoom || undefined,
-					maxZoom: set.maxzoom || undefined,
+					minZoom: typeof set.minzoom !== 'undefined' && set.minzoom > -1 ? set.minzoom : undefined,
+					maxZoom: typeof set.maxzoom !== 'undefined' && set.maxzoom > -1 ? set.maxzoom : undefined,
 					markers,
 					areas,
 					lines,
diff --git a/src/components/map/layer/MarkerSetLayer.vue b/src/components/map/layer/MarkerSetLayer.vue
index aa45ece..f58ccc1 100644
--- a/src/components/map/layer/MarkerSetLayer.vue
+++ b/src/components/map/layer/MarkerSetLayer.vue
@@ -24,13 +24,13 @@
 <script lang="ts">
 import {defineComponent, computed} from "@vue/runtime-core";
 import {useStore} from "@/store";
-import {LayerGroup} from 'leaflet';
 import {DynmapMarkerSet} from "@/dynmap";
 import Areas from "@/components/map/vector/Areas.vue";
 import Circles from "@/components/map/vector/Circles.vue";
 import Lines from "@/components/map/vector/Lines.vue";
 import Markers from "@/components/map/vector/Markers.vue";
 import DynmapMap from "@/leaflet/DynmapMap";
+import DynmapLayerGroup from "@/leaflet/layer/DynmapLayerGroup";
 
 export default defineComponent({
 	components: {
@@ -55,7 +55,7 @@ export default defineComponent({
 	setup() {
 		const store = useStore(),
 			markerSettings = computed(() => store.state.components.markers),
-			layerGroup = new LayerGroup();
+			layerGroup = new DynmapLayerGroup();
 
 		return {
 			markerSettings,
diff --git a/src/components/map/vector/Areas.vue b/src/components/map/vector/Areas.vue
index a80b37f..718de5c 100644
--- a/src/components/map/vector/Areas.vue
+++ b/src/components/map/vector/Areas.vue
@@ -16,12 +16,14 @@
 
 <script lang="ts">
 import {defineComponent, computed, onMounted, onUnmounted, watch} from "@vue/runtime-core";
-import {LayerGroup, Polyline, Polygon} from 'leaflet';
 import {useStore} from "@/store";
 import {DynmapArea, DynmapMarkerSet} from "@/dynmap";
 import {ActionTypes} from "@/store/action-types";
 import {createArea, updateArea} from "@/util/areas";
 import Util from '@/util';
+import DynmapLayerGroup from "@/leaflet/layer/DynmapLayerGroup";
+import DynmapPolygon from "@/leaflet/vector/DynmapPolygon";
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
 
 export default defineComponent({
 	props: {
@@ -30,7 +32,7 @@ export default defineComponent({
 			required: true,
 		},
 		layerGroup: {
-			type: Object as () => LayerGroup,
+			type: Object as () => DynmapLayerGroup,
 			required: true
 		}
 	},
@@ -45,7 +47,7 @@ export default defineComponent({
 
 				return markerSetUpdates && markerSetUpdates.areaUpdates.length;
 			}),
-			layers = Object.freeze(new Map()) as Map<string, Polygon | Polyline>,
+			layers = Object.freeze(new Map()) as Map<string, DynmapPolygon | DynmapPolyline>,
 
 			createAreas = () => {
 				const converter = Util.getPointConverter();
@@ -59,7 +61,7 @@ export default defineComponent({
 			},
 
 			deleteArea = (id: string) => {
-				let area = layers.get(id) as Polyline;
+				let area = layers.get(id) as DynmapPolyline;
 
 				if(!area) {
 					return;
diff --git a/src/components/map/vector/Circles.vue b/src/components/map/vector/Circles.vue
index 657fc06..01c2900 100644
--- a/src/components/map/vector/Circles.vue
+++ b/src/components/map/vector/Circles.vue
@@ -16,12 +16,14 @@
 
 <script lang="ts">
 import {defineComponent, computed, onMounted, onUnmounted, watch} from "@vue/runtime-core";
-import {Polyline, LayerGroup, Polygon} from 'leaflet';
 import {useStore} from "@/store";
 import {DynmapCircle, DynmapMarkerSet} from "@/dynmap";
 import {ActionTypes} from "@/store/action-types";
 import {createCircle, updateCircle} from "@/util/circles";
 import Util from '@/util';
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
+import DynmapPolygon from "@/leaflet/vector/DynmapPolygon";
+import DynmapLayerGroup from "@/leaflet/layer/DynmapLayerGroup";
 
 export default defineComponent({
 	props: {
@@ -30,7 +32,7 @@ export default defineComponent({
 			required: true,
 		},
 		layerGroup: {
-			type: Object as () => LayerGroup,
+			type: Object as () => DynmapLayerGroup,
 			required: true
 		}
 	},
@@ -45,7 +47,7 @@ export default defineComponent({
 
 				return markerSetUpdates && markerSetUpdates.circleUpdates.length;
 			}),
-			layers = Object.freeze(new Map<string, Polyline | Polygon>()),
+			layers = Object.freeze(new Map<string, DynmapPolyline | DynmapPolygon>()),
 
 			createCircles = () => {
 				const converter = Util.getPointConverter();
@@ -59,7 +61,7 @@ export default defineComponent({
 			},
 
 			deleteCircle = (id: string) => {
-				let circle = layers.get(id) as Polyline;
+				let circle = layers.get(id) as DynmapPolyline;
 
 				if (!circle) {
 					return;
diff --git a/src/components/map/vector/Lines.vue b/src/components/map/vector/Lines.vue
index e0e2350..f6b82b0 100644
--- a/src/components/map/vector/Lines.vue
+++ b/src/components/map/vector/Lines.vue
@@ -16,12 +16,13 @@
 
 <script lang="ts">
 import {defineComponent, computed, onMounted, onUnmounted, watch} from "@vue/runtime-core";
-import {Polyline, LayerGroup, Polygon} from 'leaflet';
 import {useStore} from "@/store";
 import {DynmapLine, DynmapMarkerSet} from "@/dynmap";
 import {ActionTypes} from "@/store/action-types";
 import {createLine, updateLine} from "@/util/lines";
 import Util from '@/util';
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
+import DynmapLayerGroup from "@/leaflet/layer/DynmapLayerGroup";
 
 export default defineComponent({
 	props: {
@@ -30,7 +31,7 @@ export default defineComponent({
 			required: true,
 		},
 		layerGroup: {
-			type: Object as () => LayerGroup,
+			type: Object as () => DynmapLayerGroup,
 			required: true
 		}
 	},
@@ -45,7 +46,7 @@ export default defineComponent({
 
 				return markerSetUpdates && markerSetUpdates.lineUpdates.length;
 			}),
-			layers = Object.freeze(new Map<string, Polyline | Polygon>()),
+			layers = Object.freeze(new Map<string, DynmapPolyline>()),
 
 			createLines = () => {
 				const converter = Util.getPointConverter();
@@ -59,7 +60,7 @@ export default defineComponent({
 			},
 
 			deleteLine = (id: string) => {
-				let line = layers.get(id) as Polyline;
+				let line = layers.get(id) as DynmapPolyline;
 
 				if (!line) {
 					return;
diff --git a/src/components/map/vector/Markers.vue b/src/components/map/vector/Markers.vue
index 0030441..43e1306 100644
--- a/src/components/map/vector/Markers.vue
+++ b/src/components/map/vector/Markers.vue
@@ -16,11 +16,12 @@
 
 <script lang="ts">
 import {defineComponent, computed, onMounted, onUnmounted, watch} from "@vue/runtime-core";
-import {LayerGroup, Marker} from 'leaflet';
+import {Marker} from 'leaflet';
 import {useStore} from "@/store";
 import {DynmapMarker, DynmapMarkerSet} from "@/dynmap";
 import {ActionTypes} from "@/store/action-types";
 import {createMarker, updateMarker} from "@/util/markers";
+import DynmapLayerGroup from "@/leaflet/layer/DynmapLayerGroup";
 
 export default defineComponent({
 	props: {
@@ -29,7 +30,7 @@ export default defineComponent({
 			required: true,
 		},
 		layerGroup: {
-			type: Object as () => LayerGroup,
+			type: Object as () => DynmapLayerGroup,
 			required: true
 		}
 	},
diff --git a/src/leaflet/layer/DynmapLayerGroup.ts b/src/leaflet/layer/DynmapLayerGroup.ts
new file mode 100644
index 0000000..9b8c44f
--- /dev/null
+++ b/src/leaflet/layer/DynmapLayerGroup.ts
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2020 James Lyne
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+import {Layer, Map as LeafletMap, LayerGroup, LayerOptions, Util} from "leaflet";
+
+export interface DynmapLayerGroupOptions extends LayerOptions {
+	minZoom?: number;
+	maxZoom?: number;
+}
+
+export default class DynmapLayerGroup extends LayerGroup {
+	// @ts-ignore
+	options: DynmapLayerGroupOptions;
+	_layerVisibility: Map<Layer, boolean>;
+	_layers: any;
+
+	constructor(layers?: Layer[], options?: DynmapLayerGroupOptions) {
+		super(layers, options);
+		Util.setOptions(this, options);
+
+		this._layerVisibility = new Map();
+	}
+
+	onAdd(map: LeafletMap) {
+		map.on('zoomend', this._handleZoomChange, this);
+		this._handleZoomChange();
+
+		return this;
+	}
+
+	onRemove(map: LeafletMap) {
+		super.onRemove(map);
+		this._layerVisibility.clear();
+		map.off('zoomend', this._handleZoomChange, this);
+
+		return this;
+	}
+
+	clearLayers(): this {
+		this._layerVisibility.clear();
+		return super.clearLayers();
+	}
+
+	addLayer(layer: Layer) {
+		const id = this.getLayerId(layer);
+
+		this._layers[id] = layer;
+
+
+		if(this._map) {
+			const visible = this._isLayerVisible(layer, this._map.getZoom());
+			this._layerVisibility.set(layer, visible);
+
+			if(visible) {
+				this._map.addLayer(layer);
+			}
+		} else {
+			this._layerVisibility.set(layer, false);
+		}
+
+		return this;
+	}
+
+	removeLayer(layer: Layer): this {
+		this._layerVisibility.delete(layer);
+		return super.addLayer(layer);
+	}
+
+	_handleZoomChange() {
+		if(!this._map) {
+			return;
+		}
+
+		const zoom = this._map.getZoom();
+
+		//FIXME: Keep track of layers that actually have min/max zoom, to avoid pointless checking of every layer?
+		this.eachLayer((layer) => {
+			const newVisibility = this._isLayerVisible(layer, zoom),
+				currentVisibility = this._layerVisibility.get(layer);
+
+				if(newVisibility) {
+					if(!currentVisibility) {
+						this._map.addLayer(layer);
+					}
+				} else if(currentVisibility) {
+					this._map.removeLayer(layer);
+				}
+
+				this._layerVisibility.set(layer, newVisibility);
+		}, this);
+	}
+
+	_isLayerVisible(layer: Layer, currentZoom: number) {
+		let minZoom = this.options.minZoom || -Infinity,
+			maxZoom = this.options.maxZoom || Infinity;
+
+		if((layer as any).options && (layer as any).options.minZoom !== undefined) {
+			minZoom = (layer as any).options.minZoom;
+		}
+
+		if((layer as any).options && (layer as any).options.maxZoom !== undefined) {
+			maxZoom = (layer as any).options.maxZoom;
+		}
+
+		return currentZoom >= minZoom && currentZoom <= maxZoom;
+	}
+}
\ No newline at end of file
diff --git a/src/leaflet/marker/GenericMarker.ts b/src/leaflet/marker/GenericMarker.ts
index 9189235..1e67e87 100644
--- a/src/leaflet/marker/GenericMarker.ts
+++ b/src/leaflet/marker/GenericMarker.ts
@@ -16,8 +16,13 @@
 
 import {MarkerOptions, Marker, Util, LatLngExpression, Icon} from 'leaflet';
 
+export interface GenericMarkerOptions extends MarkerOptions {
+	minZoom?: number;
+	maxZoom?: number;
+}
+
 export class GenericMarker extends Marker {
-	constructor(latLng: LatLngExpression, options: MarkerOptions) {
+	constructor(latLng: LatLngExpression, options: GenericMarkerOptions) {
 		super(latLng, options);
 		Util.setOptions(this, options);
 	}
diff --git a/src/leaflet/vector/DynmapPolygon.ts b/src/leaflet/vector/DynmapPolygon.ts
new file mode 100644
index 0000000..55db7f8
--- /dev/null
+++ b/src/leaflet/vector/DynmapPolygon.ts
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2020 James Lyne
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+import {LatLngExpression, Polygon, PolylineOptions, Util} from "leaflet";
+
+export interface DynmapPolygonOptions extends PolylineOptions {
+	minZoom?: number;
+	maxZoom?: number;
+}
+
+export default class DynmapPolygon extends Polygon {
+	constructor(latlngs: LatLngExpression[] | LatLngExpression[][] | LatLngExpression[][][], options?: DynmapPolygonOptions) {
+		super(latlngs, options);
+		Util.setOptions(this, options);
+	}
+}
\ No newline at end of file
diff --git a/src/leaflet/vector/DynmapPolyline.ts b/src/leaflet/vector/DynmapPolyline.ts
new file mode 100644
index 0000000..fd33804
--- /dev/null
+++ b/src/leaflet/vector/DynmapPolyline.ts
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2020 James Lyne
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+import {LatLngExpression, Polyline, PolylineOptions, Util} from "leaflet";
+
+export interface DynmapPolylineOptions extends PolylineOptions {
+	minZoom?: number;
+	maxZoom?: number;
+}
+
+export default class DynmapPolyline extends Polyline {
+	constructor(latlngs: LatLngExpression[] | LatLngExpression[][], options?: DynmapPolylineOptions) {
+		super(latlngs, options);
+		Util.setOptions(this, options);
+	}
+}
\ No newline at end of file
diff --git a/src/util/areas.ts b/src/util/areas.ts
index 8619291..0b458b0 100644
--- a/src/util/areas.ts
+++ b/src/util/areas.ts
@@ -17,13 +17,23 @@
  *    limitations under the License.
  */
 
-import {LatLngExpression, Polygon, Polyline} from "leaflet";
+import {LatLngExpression} from "leaflet";
 import {DynmapArea} from "@/dynmap";
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
+import DynmapPolygon from "@/leaflet/vector/DynmapPolygon";
 
-export const createArea = (options: DynmapArea, converter: Function): Polyline | Polygon => {
+export const createArea = (options: DynmapArea, converter: Function): DynmapPolyline | DynmapPolygon => {
 	const outline = !options.style.fillOpacity || (options.style.fillOpacity <= 0),
 		points = getPoints(options, converter, outline),
-		area = outline ? new Polyline(points, options.style) : new Polygon(points, options.style);
+		area = outline ? new DynmapPolyline(points, {
+			...options.style,
+			minZoom: options.minZoom,
+			maxZoom: options.maxZoom,
+		}) : new DynmapPolygon(points, {
+			...options.style,
+			minZoom: options.minZoom,
+			maxZoom: options.maxZoom,
+		});
 
 	if (options.label) {
 		area.bindPopup(() => createPopup(options));
@@ -32,7 +42,7 @@ export const createArea = (options: DynmapArea, converter: Function): Polyline |
 	return area;
 };
 
-export const updateArea = (area: Polyline | Polygon | undefined, options: DynmapArea, converter: Function): Polyline | Polygon => {
+export const updateArea = (area: DynmapPolyline | DynmapPolygon | undefined, options: DynmapArea, converter: Function): DynmapPolyline | DynmapPolygon => {
 	const outline = (options.style && options.style.fillOpacity && (options.style.fillOpacity <= 0)) as boolean,
 		points = getPoints(options, converter, outline);
 
diff --git a/src/util/circles.ts b/src/util/circles.ts
index 6812308..4954180 100644
--- a/src/util/circles.ts
+++ b/src/util/circles.ts
@@ -18,18 +18,22 @@
  */
 
 import {DynmapCircle} from "@/dynmap";
-import {Polyline, Polygon, LatLngExpression} from "leaflet";
+import {LatLngExpression} from "leaflet";
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
+import DynmapPolygon from "@/leaflet/vector/DynmapPolygon";
 
-export const createCircle = (options: DynmapCircle, converter: Function): Polyline | Polygon => {
+export const createCircle = (options: DynmapCircle, converter: Function): DynmapPolyline | DynmapPolygon => {
 	const outline = !options.style.fillOpacity || (options.style.fillOpacity <= 0),
-		points = getCirclePoints(options, converter, outline);
-	let circle;
-
-	if(outline) {
-		circle = new Polyline(points, options.style);
-	} else {
-		circle = new Polygon(points, options.style);
-	}
+		points = getCirclePoints(options, converter, outline),
+		circle = outline ? new DynmapPolyline(points, {
+			...options.style,
+			minZoom: options.minZoom,
+			maxZoom: options.maxZoom,
+		}) : new DynmapPolygon(points, {
+			...options.style,
+			minZoom: options.minZoom,
+			maxZoom: options.maxZoom,
+		});
 
 	if(options.label) {
 		circle.bindPopup(() => createPopup(options));
@@ -38,7 +42,7 @@ export const createCircle = (options: DynmapCircle, converter: Function): Polyli
 	return circle;
 };
 
-export const updateCircle = (circle: Polyline | Polygon | undefined, options: DynmapCircle, converter: Function): Polyline | Polygon => {
+export const updateCircle = (circle: DynmapPolyline | DynmapPolygon | undefined, options: DynmapCircle, converter: Function): DynmapPolyline | DynmapPolygon => {
 	const outline = (options.style && options.style.fillOpacity && (options.style.fillOpacity <= 0)) as boolean,
 		points = getCirclePoints(options, converter, outline);
 
diff --git a/src/util/lines.ts b/src/util/lines.ts
index e7cc17a..3e8fd58 100644
--- a/src/util/lines.ts
+++ b/src/util/lines.ts
@@ -18,11 +18,16 @@
  */
 
 import {DynmapLine} from "@/dynmap";
-import {Polyline, Polygon, LatLngExpression} from "leaflet";
+import {LatLngExpression} from "leaflet";
+import DynmapPolyline from "@/leaflet/vector/DynmapPolyline";
 
-export const createLine = (options: DynmapLine, converter: Function): Polyline | Polygon => {
+export const createLine = (options: DynmapLine, converter: Function): DynmapPolyline => {
 	const points = getLinePoints(options, converter),
-		line = new Polyline(points, options.style);
+		line = new DynmapPolyline(points, {
+			...options.style,
+			minZoom: options.minZoom,
+			maxZoom: options.maxZoom,
+		});
 
 	if(options.label) {
 		line.bindPopup(() => createPopup(options));
@@ -31,7 +36,7 @@ export const createLine = (options: DynmapLine, converter: Function): Polyline |
 	return line;
 };
 
-export const updateLine = (line: Polyline | Polygon | undefined, options: DynmapLine, converter: Function): Polyline | Polygon => {
+export const updateLine = (line: DynmapPolyline | undefined, options: DynmapLine, converter: Function): DynmapPolyline => {
 	const points = getLinePoints(options, converter);
 
 	if (!line) {
diff --git a/src/util/markers.ts b/src/util/markers.ts
index 7661be4..9d01caa 100644
--- a/src/util/markers.ts
+++ b/src/util/markers.ts
@@ -32,8 +32,8 @@ export const createMarker = (options: DynmapMarker, projection: DynmapProjection
 			showLabel: false,
 			isHtml: options.isHTML,
 		}),
-		// maxZoom: this.options.maxZoom,
-		// minZoom: this.options.minZoom,
+		maxZoom: options.maxZoom,
+		minZoom: options.minZoom,
 	});
 };