Montague Sound Special SD51-12 — AUSTopo 1:250,000 Topographic Map (2025)

Mitchell Falls, remote coastal ranges, and an island-filled Kimberley seaboard—captured in one exceptional special sheet

Covering Montague Sound, the Mitchell Plateau, and a vast section of the north-west Kimberley coast, this AUSTopo 1:250,000 Special sheet provides a remarkable regional view of one of Australia’s most intricate and isolated landscapes. Sandstone plateaus, deeply cut rivers, waterfalls, mangrove-fringed inlets, rugged headlands, offshore reefs, and hundreds of islands are brought together across an extended map area.

The sheet includes Mitchell Falls, the Mitchell River, Mitchell Plateau, Admiralty Gulf, York Sound, Port Warrender, and Montague Sound. Its coastal coverage extends across the Bonaparte Archipelago, Maret Islands, Bigge Island, Coronation Island, Prudhoe Islands, and numerous passages, bays, and reefs—making it an outstanding reference for conservation work, expedition planning, tourism operations, heritage research, and regional coordination.

At 1:250,000 scale (1 cm = 2.5 km), this is the largest scale at which published topographic maps cover the entire Australian continent. As a special sheet, Montague Sound provides an expanded north–south coverage area that brings the Mitchell Plateau and adjoining Kimberley coast into one coherent view.

Explore adjoining sheets and confirm coverage using the official AUSTopo 1:250,000 map index.

🧭 Why this map stands out

• Updated mapping (2025) — aligned to modern Australian datums for confident, current use

• Special extended coverage — a larger-format sheet spanning approximately 1.5 degrees of latitude

• Extraordinary coastal perspective — plateau country, rivers, waterfalls, islands, inlets, and reefs shown together

• Professional-grade cartography — relied on by emergency services, researchers, conservation teams, and land managers

• Dual coordinate systems — seamless transition between office planning and field navigation

• Printed in Australia — precision output, locally finished and quality-checked

🗺️ What you’ll see

• Contours and spot elevations across the Mitchell Plateau, Manning Peak, coastal ranges, and sandstone escarpments

• The Mitchell River, Lawley River, Mitchell Falls, Mertens Falls, creeks, lagoons, and seasonal drainage systems

• Montague Sound, Admiralty Gulf, York Sound, Port Warrender, and adjoining bays and passages

• The Bonaparte Archipelago, Maret Islands, Bigge Island, Coronation Island, Prudhoe Islands, reefs, and coastal landmarks

• Remote communities, airfields, access tracks, vegetation patterns, and clear positioning grids

📐 Map details at a glance

• Scale: 1:250,000

• Series: AUSTopo — Australian Digital Topographic Map Series

• Coverage: Montague Sound Special SD51-12

• Map currency: 2025

• Coordinates: Geographical & MGA

• Datum: GDA2020, AHD

• Projection: Universal Transverse Mercator (UTM)

• Sheet size: 900 mm (W) × 700 mm (H)

💧 Field-Ready Options for Rugged Use

Choose the format that best suits your intended use—from lightweight trip planning to demanding all-weather fieldwork.

✅ Standard Paper

• Printed on 100 gsm FSC® coated paper

• Produces crisp, clear text and finely defined map symbols

• Lightweight and convenient for general reference or protected field use

• An economical choice for trip planning, research and office applications

✅ Waterproof and Tearproof Tyvek®

• Made from genuine DuPont™ Tyvek®, an advanced synthetic material composed of pure polyethylene fibres

• Waterproof, tear-resistant, foldable and extremely lightweight

• Printed using HP pigment-based inks for a permanent waterproof finish

• Suitable for backpacks, vehicles and exposed field conditions

• Ideal for bushwalkers, emergency personnel and outdoor professionals

• Provides exceptional durability without the weight and bulk of lamination

✅ Laminated

• Fully encapsulated between two 80-micron gloss laminate sheets

• Highly resistant to water, stains, smudges and tearing

• Draw on the surface with whiteboard markers for route planning or instruction

• Use Mark-It-Dots to identify campsites, hazards, access points or other locations without marking the map permanently

• Wipeable and reusable

• Ideal for offices, classrooms, operations centres and repeated field reference

🎯 Who it’s for

• Emergency services and remote-area coordinators

• Conservation, park, marine, and Indigenous land managers

• Geologists, ecologists, researchers, and heritage specialists

• Kimberley cruise operators and expedition planners

• Educators, historians, and serious map collectors

🇦🇺 Our commitment

Every AUSTopo map we supply is printed and finished in Australia, colour-managed for accuracy, hand-checked, and packed with care—so it arrives ready for real-world use.

Plan, brief, and explore the Montague Sound and Mitchell Plateau region with confidence. Choose your finish and add this exceptional 2025 AUSTopo Special map to your kit today.