BNWR Geospatial Paddling Map — Blackwater National Wildlife Refuge (2026)

What you get

• Your GPS position on the map. A blue dot on this official sheet shows where you are.
• Works with no signal. Download it once; the map and your GPS position keep working with no cell signal.
• Tracks, placemarks and photos. Record where you go, drop pins, and export GPX, KML or GeoJSON.
• Free updates. When a new edition is published here, it’s yours at no cost.

1. 1Tap “Get this map”: it’s added to your free account.
2. 2Open the Cartahaven app on your phone and sign in.
3. 3Tap “My purchases” (“Get my maps” before you sign in). It’s on your phone, ready offline.

The app runs on iPhone, Android and in desktop browsers. Install it · How offline GPS works