Balladonia SI51-03 — AUSTopo 1:250,000 Topographic Map (2025)

Eyre Highway country, ancient woodland, and the western gateway to the Nullarbor—mapped with authority across remote southeastern Western Australia

Covering Balladonia and the surrounding country east of Norseman, this AUSTopo 1:250,000 sheet presents a clear regional view of the transition between the Great Western Woodlands and the vast limestone landscapes of the Nullarbor. The Eyre Highway forms the defining transport corridor through a sparsely settled landscape of open woodland, scrub, rocky rises, broad claypans, pastoral tracks, and limited surface water.

From Balladonia’s historic roadhouse and telegraph country to the western approach of the famous Ninety Mile Straight, the map provides essential big-area context for one of Australia’s most isolated overland routes. It is designed for professional users, land managers, researchers, and experienced travellers who need dependable coverage beyond the highway itself.

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 remote-area navigation.

Need to confirm adjoining sheets or wider coverage? Explore 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 Eyre Highway coverage — Balladonia and the western approach to the Ninety Mile Straight shown in clear regional context

• Woodland-to-Nullarbor perspective — captures the transition from temperate woodland and rocky country to broad plains and claypans

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

• Dual coordinate systems — supports smooth transitions 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 subdued rises, rocky outcrops, plains, and low-relief terrain

• Claypans, rockholes, drainage features, and other scarce inland water sources

• The Eyre Highway, Balladonia locality, remote roads, pastoral tracks, and access routes

• Great Western Woodlands vegetation patterns and the transition towards the Nullarbor landscape

• Historic telegraph-country localities, pastoral features, and place names

• Administrative boundaries and 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: Balladonia SI51-03

• Map currency: 2025

• Coordinates: Geographical & MGA

• Datum: GDA2020, AHD

• Projection: Universal Transverse Mercator (UTM)

• Sheet size: 900 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

• Pastoral, environmental, and land-use managers

• Engineers, geologists, surveyors, and infrastructure planners

• Experienced Nullarbor travellers and expedition planners

• Educators, historians, researchers, and 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, navigate, and explore the Balladonia region with confidence. Choose your finish and add this essential 2025 AUSTopo map to your kit today.