QTopo 9548-4 — Porpoise Shoal

1:50,000 Topographic Map

A detailed and authoritative topographic map covering the Porpoise Shoal region—an expansive marine and coastal environment positioned off the western side of K’gari (Fraser Island). Defined by shallow sandbanks, tidal flats, mangrove systems, low dune country, and quiet estuarine inlets, Porpoise Shoal is a unique blend of land–sea interactions and protected ecological habitats.

The QTopo 9548-4 (Porpoise Shoal) sheet provides essential spatial clarity for marine navigation planning, environmental monitoring, fisheries research, park operations, cultural heritage work, and remote coastal exploration. Produced by the Queensland Department of Resources, the map includes precise bathymetric-style coastal contours, hydrology detail, vegetation mapping, and key access routes surrounding these sensitive tidal environments.

Whether you’re studying coastal processes, navigating shallow marine areas, conducting ecological surveys, or working along K’gari’s western shoreline, this map offers accurate and reliable mid-scale geographic detail.

🗺️ Map Content and Features

At 1:50,000 scale—where 1 cm = 500 m—the map includes:

• Contour lines showing low dune elevations, coastal ridges, sand mounds, and subtle topographic shifts

• Coastal & hydrology features: shoals, tidal sandbanks, mangroves, creeks, estuaries, wetlands, and coastal drainage flows

• Access routes: beach travel corridors, inland tracks, ranger routes, and connection points used during low-tide access

• Infrastructure: ranger-managed locations, communication markers, access points, and limited visitor facilities

• Vegetation mapping: mangrove forests, coastal dune vegetation, heathland, wetland plants, and woodland pockets

• Land tenure boundaries: national park areas, marine park zones, conservation zones, and regulated protected habitats

• Named features: Porpoise Shoal, Platypus Bay, adjacent beaches, dune areas, estuarine mouths, and marine shallows

• Points of interest: vital for rangers, ecologists, emergency teams, fisheries researchers, and marine explorers

All mapping is sourced from Queensland’s authoritative geospatial datasets for dependable accuracy.

🧭 Who Uses This Map?

The Porpoise Shoal 9548-4 Topographic Map is essential for:

• Marine & coastal scientists – tidal modelling, seagrass and mangrove surveys, sediment transport work

• National park rangers & managers – planning, ecological protection, remote operations

• Emergency services & SES – navigation and response across shallow marine and remote shorelines

• Fisheries researchers & boating users – exploring shallow banks, estuarine areas, and coastal access routes

• Geographers & geomorphologists – shoreline evolution, tidal flat analysis, coastal processes

• Educators & students – coastal geography, environmental mapping, field-based learning

A critical reference for both scientific and operational work along the western coast of K’gari.

💧 Field-Ready Print Options

Choose the format best suited to coastal and marine conditions:

✅ Waterproof & Tearproof Tyvek®

• Printed on DuPont™ Tyvek®

• Fully waterproof, tear-resistant, and resistant to sand, salt, and humidity

• Ideal for fieldwork on beaches, tidal flats, and marine environments

✅ Laminated Edition

• Encapsulated in 2 × 80-micron gloss laminate

• Writeable surface compatible with whiteboard markers

• Durable and ideal for wet, sandy, or salt-exposed settings

📄 Standard Paper Edition

• Crisp, high-resolution printing

• Ideal for planning, office reference, and educational use

📐 Map Details

Title: QTopo 9548-4 — Porpoise Shoal
Publisher: Queensland Department of Resources
Series: QTopo 1:50,000
Scale: 1:50,000 (1 cm = 500 m)
Dimensions: 710 mm (width) × 594 mm (height)
Coverage: Porpoise Shoal, Platypus Bay, western K’gari coastline, tidal flats, mangroves, and coastal dune systems
Material Options: Paper, laminated, or waterproof Tyvek®
Printed in: Australia
Edition: Latest available

🛒 Ordering & Options

• Folded paper map – portable and convenient

• Waterproof Tyvek® edition – rugged and ideal for humid, sandy, and wet environments

• Laminated edition – reusable and perfect for planning or operational work

🎯 Summary

The QTopo 9548-4 — Porpoise Shoal Topographic Map provides authoritative mid-scale mapping of one of K’gari’s most distinctive coastal–marine environments. With precise hydrology, dune and shoreline detail, and durable print formats, it is essential for scientists, rangers, emergency teams, researchers, and marine explorers operating across this ecologically rich region.

Plan with purpose.
Navigate with confidence.
Explore with clarity.