diff --git a/index.html b/index.html
index a0081eb..dfbb5e8 100644
--- a/index.html
+++ b/index.html
@@ -147,12 +147,18 @@ <h3>Stage</h3>
 					only)</label><br />
 				<label for="map-selector"
 					title="[EXPERIMENTAL] Select map type. Large and extra large maps are slower to generate.">
-					<ion-icon name="information-circle-outline" aria-hidden="true" style="margin: .2rem 0; vertical-align: text-bottom"></ion-icon>
+					<ion-icon name="information-circle-outline" aria-hidden="true"
+						style="margin: .2rem 0; vertical-align: text-bottom"></ion-icon>
 					Select map type (experimental):</label>
 				<select id="map-selector">
-					<option value="normal">Normal (default)</option>
-					<option value="large">Large</option>
-					<option value="xlarge">Extra large (slow)</option>
+					<option value="normal" title="The original Blue Marble (2002) map.">Normal</option>
+					<option value="large-nxtgen"
+						title="Large map with the Blue Marble: Next Generation (July 2005) map.">Large
+						(Next Gen)</option>
+					<option value="large" title="A larger version of the Blue Marble (2002) map.">Large</option>
+					<option value="xlarge"
+						title="A very large version of the Blue Marble (2002) map. Not recommended unless you're only a really fast connection + have lots of free time.">
+						Extra large (slow)</option>
 				</select>
 			</div>
 		</div>
diff --git a/static/js/generate.js b/static/js/generate.js
index a5d8ca4..0a5c4fa 100644
--- a/static/js/generate.js
+++ b/static/js/generate.js
@@ -51,17 +51,18 @@ async function getMapBlob() {
     const mapType = mapSelector.options[mapSelector.selectedIndex].value;
     const MAP_URL = mapType === "xlarge"
         ? "https://cdn.trackgen.codingcactus.codes/map.jpg"
-        : mapType === "large"
-            ? "static/media/bg12000.jpg"
-            : mapType === "normal"
-                ? "static/media/bg8192.png"
-                : "static/media/bg8192.png";
+        : mapType === "large-nxtgen"
+            ? "static/media/bg21600-nxtgen.jpg"
+            : mapType === "large"
+                ? "static/media/bg12000.jpg"
+                : mapType === "normal"
+                    ? "static/media/bg8192.png"
+                    : "static/media/bg8192.png";
     const response = await fetch(MAP_URL);
     const blob = await response.blob();
     return blob;
 }
 
-
 function createMap(data, accessible) {
     document.querySelector("#close").classList.add("hidden");
     document.querySelector("#output").classList.add("hidden");
diff --git a/static/media/bg21600-nxtgen.jpg b/static/media/bg21600-nxtgen.jpg
new file mode 100644
index 0000000..d777cd9
Binary files /dev/null and b/static/media/bg21600-nxtgen.jpg differ