AUS 780 - Althorpe Islands to Backstairs Passage Nautical Chart

AUS 780 — Althorpe Islands to Backstairs Passage, SA Nautical Chart

For skippers, pilots, and coastal crews running the Althorpe Islands–Backstairs Passage sector

Run confident coastal tracks with AUS 780. This sheet provides inshore/offshore coverage at 1:150,000 on Mercator projection—ideal for shaping routes, landfall bearings, and waypoint checks along South Australia’s lower Gulf and KI approaches.

Why skippers choose this chart

• 🧭 Built for coastal runs — Main sheet at 1:150,000 from the Althorpe Islands through Backstairs Passage.

• 🚢 Traffic & approach awareness — Helpful for aligning landfalls, safe offings, and reef clearances.

• 🛰️ Mercator projection — Straightforward plotting for bearings and GPS fixes.

• 📍 Exact bounds — All four limits listed for quick position checks (see below).

• 🗺️ Deck-ready materials — Writeable laminate front face for chart-correction pencils.

• 🇦🇺 Printed in Australia — Colour-managed, hand-checked.

Coverage

• Main Chart — AUS 780: Australia South Coast · South Australia · Althorpe Islands to Backstairs Passage

  • Scale: 1:150,000 · Projection: Mercator

  • Bounds: N 35°05.40′ S · S 35°54.00′ S · E 138°21.60′ E · W 136°40.00′ E

  • Publication: 16-Oct-1967 · Latest Edition: 13-Jun-2025

Premium materials & finishes

• Paper (120 gsm matte) — Crisp, flexible and chart-table friendly; ideal under nav-station glass.

• Laminated (soft-matte front / gloss back, edge-sealed) — Front side is low-glare and writeable with chart-correcting/grease pencils; gloss back adds rigidity. Wipes clean with a soft cloth.

Note: We’ve intentionally configured the laminate with a soft-matte writeable face and a gloss reverse so you can annotate pilotage notes, fixes and ETAs directly on the chart, then clean down between passages.

On-board & ashore use

• 🧭 Passage planning — Pre-plot coastal tracks, tide gates and contingencies.

• 📒 Crew briefings — Clear layout for pilotage notes, waypoint verification and tides.

• 🛠️ Bridge/club display — Durable laminated option for noticeboards and training rooms.

• 🎁 Gift for skippers — A practical, good-looking chart for SA crews.

Specifications

Important note (mariner’s guidance)

This product is ideal for planning, briefing, education, and display. For underway navigation, always carry and consult the latest official hydrographic chart or approved ECDIS and current Notices to Mariners. Local conditions and aids may change.

Ready to run Althorpe Islands to Backstairs Passage?

Select your finish above and add to cart. We’ll print locally, hand-check, and ship with care.