Yowalga SG51-12 — AUSTopo 1:250,000 Topographic Map (2025)

Great Central Road country, desert rockholes, and remote inland ranges—mapped with authority across Western Australia’s eastern interior

Covering Yowalga and the surrounding country along the Great Central Road, this AUSTopo 1:250,000 sheet provides a clear, authoritative regional view of a remarkably remote part of Western Australia. From the Yowalga and Muggun rockholes to ephemeral lagoons, desert creeks, low ranges, and isolated access tracks, it brings together the terrain and infrastructure needed to understand this vast inland landscape.

The map includes the Great Central Road and adjoining remote tracks, together with features such as Yowalga Rockholes, Lake Gillen, Woodhouse Lagoon, Rowe Hills, Sutherland Range, and Sharpes Bluff. It is a valuable planning reference for experienced outback travellers, geologists, land managers, infrastructure teams, and emergency coordinators working across the western Officer Basin and surrounding desert country.

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—ideal for regional planning, land management, emergency coordination, and serious outback navigation.

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

• Essential corridor context — the Great Central Road, remote tracks, rockholes, and surrounding terrain shown in one coherent view

• Professional-grade cartography — relied on by emergency services, engineers, geologists, 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 desert plains, low ranges, hills, and bluffs

• Rockholes, springs, lagoons, creeks, and intermittent drainage features

• The Great Central Road, Hunt Oil Road, remote access tracks, and named localities

• Vegetation patterns and administrative boundaries

• Clear grid overlays for accurate positioning and large-area planning

📐 Map details at a glance

• Scale: 1:250,000

• Series: AUSTopo — Australian Digital Topographic Map Series

• Coverage: Yowalga SG51-12

• Map currency: 2025

• Coordinates: Geographical & MGA

• Datum: GDA2020, AHD

• Projection: Universal Transverse Mercator (UTM)

• Sheet size: 800 mm (W) × 500 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

• Environmental, conservation, and land-use managers

• Geologists, surveyors, engineers, and infrastructure planners

• Educators and students

• Experienced four-wheel-drive travellers and expedition planners

🇦🇺 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 Yowalga region with confidence. Choose your finish and add this essential 2025 AUSTopo map to your kit today.