TL;DR: ISS delivers 3D laser scanning across Kalgoorlie and the Eastern Goldfields—capturing millimetre-accurate point clouds of Super Pit high walls, Fimiston and Mungari processing plants, and underground gold stopes. Our scans drive geotechnical wall monitoring, plant retrofit design, void reconciliation and clash detection, with point cloud data registered to your mine grid and delivered in Surpac, Vulcan, Recap or E57.
Key takeaways
- 3D laser scanning in Kalgoorlie captures up to 2 million points per second, producing point clouds accurate to 2–6mm—dense enough for KCGM Super Pit wall stability assessment and sub-millimetre crusher and mill alignment at Goldfields gold plants.
- Northern Star's Kalgoorlie Production Centre (Super Pit JV, Kanowna Belle, Kundana) and Evolution Mining's Mungari are among the operations where scanning supports as-built documentation, void survey and plant upgrades.
- Scanning is the safest way to measure the Super Pit's 600m-plus high walls and congested process plants—data is captured remotely, removing surveyors from beneath unstable batters and live equipment.
- Underground cavity monitoring system (CMS) and static scanning quantify stope over-break and dilution in narrow-vein Goldfields mines, feeding directly into reconciliation and geotechnical models.
- Typical Goldfields laser scanning projects run from AUD $3,000 for a single plant area to $15,000-plus for full-facility digital twins, with point cloud registration delivered in 2–5 days.
3D laser scanning for Kalgoorlie's gold operations
Kalgoorlie-Boulder is Australia's gold capital—a city of 30,000 built on the Golden Mile, 595 kilometres east of Perth, surrounded by more than 100 producing and developing operations across the Yilgarn Craton. The scale and density of that mining creates a specific demand: operators need to capture complex, hazardous, fast-changing environments in three dimensions, quickly and without putting people in harm's way. That is precisely what 3D laser scanning in Kalgoorlie delivers.
A terrestrial laser scanner emits a rotating beam that measures distance to every surface it strikes, building a "point cloud" of millions of XYZ coordinates with colour and intensity values. Where a total station records selected points, a scanner records everything—a Super Pit batter, a SAG mill girth gear, a section of decline, or an entire carbon-in-pulp circuit—at 2–6mm accuracy. For Goldfields operators, that completeness is the value: one scan becomes the single source of truth for geotechnical engineers, mechanical fitters, planners and designers alike.
This page covers how ISS applies laser scanning specifically across Kalgoorlie and the Eastern Goldfields, the sites and applications where it earns its keep, the equipment and method we use, the standards we work to, and why local operators engage us. For the full range of services in the region, see our Kalgoorlie and Goldfields mining survey hub; for the technology in depth, see our industrial laser scanning guide.
Where laser scanning earns its keep in the Goldfields
The Kalgoorlie region runs the full spectrum of gold mining methods, and each generates distinct scanning work.
Super Pit high-wall monitoring. KCGM's Fimiston Super Pit—approximately 3.5km long, 1.5km wide and over 600m deep—presents one of the most consequential wall-stability problems in Australian mining. Laser scanning captures dense, repeatable surface models of high walls and batters that geotechnical engineers compare scan-over-scan to detect bulging, ravelling and movement millimetres before it becomes a failure. Because capture is remote, no surveyor stands beneath an unstable face.
Gold processing plant as-builts and retrofits. The Fimiston Mill, Gidji facility, and Evolution's Mungari CHPP are congested with crushers, SAG and ball mills, leach and CIP tanks, thickeners and kilometres of pipework—often modified for decades without accurate drawings. Scanning produces a complete as-built point cloud that underpins clash detection before a single new flange is fabricated, slashing rework on tie-ins and capacity upgrades.
Underground stope and void survey. In narrow-vein and long-hole open stoping operations like Kanowna Belle, Kundana and Big Bell, cavity monitoring system scanning measures the actual extraction shape after firing—quantifying over-break, dilution and remnant ore. This data feeds reconciliation and geotechnical back-analysis that hand survey cannot supply safely.
Mechanical and structural alignment. Mill girth gears, pinions, crusher frames, conveyor structures and headframes are scanned for precision alignment and deformation checks, with deviations resolved against design models.
| Site / asset | Operator | Scanning application |
|---|---|---|
| Fimiston Super Pit | Northern Star (KCGM 50%) | High-wall stability scanning, pit as-built, void interface |
| Fimiston Mill / Gidji | Northern Star (KCGM) | Plant as-built, clash detection, mill and crusher alignment |
| Kanowna Belle, Kundana | Northern Star | Underground stope CMS, development as-built |
| Mungari CHPP | Evolution Mining | Multi-feed plant as-built, retrofit and tie-in design |
| Big Bell, King of the Hills | Westgold, Vault/Red 5 | Underground void scanning, decline as-built |
Key point: In the Goldfields, the strongest case for laser scanning is rarely a single measurement—it is removing people from beneath 600m high walls and inside live processing plants while still capturing every surface to engineering tolerance.
Method and equipment
ISS uses survey-grade terrestrial scanners—Leica RTC360-class instruments capturing up to 2 million points per second at 2–6mm accuracy over typical 10–50m working ranges, with phase-based units for high-detail plant interiors and long-range time-of-flight capability for pit walls. Underground void work uses cavity monitoring systems deployed through boreholes or drive openings.
Every project follows the same disciplined workflow:
- Site assessment and control. We plan scan positions for complete coverage and tie the survey into your existing mine control network so the cloud sits correctly in your grid—GDA2020, MGA Zone 51, or local mine grid.
- Capture. Multiple overlapping scan positions, each ranging 50–100m, are taken with targets or natural-feature registration. A complete plant area is typically captured in one to three days on site.
- Registration and processing. Scans are registered into a single unified cloud, noise-filtered and verified against control, with registration accuracy reported.
- Deliverables. Point clouds in E57, LAS/LAZ, RCP/RCS or PTS; 2D plans and sections; meshed or solid 3D/CAD models; clash and deviation reports; and mine-package formats for Surpac, Vulcan and Deswik.
Goldfields conditions—40°C-plus heat, red dust, vibration and remoteness—are designed into our kit selection and procedure. We carry backup instruments to site so a single equipment fault never strands a shutdown window, and we mobilise from Perth or coordinate through Kalgoorlie to minimise standby cost.
Standards and accuracy
ISS laser scanning is performed to recognised survey and engineering standards so deliverables are accepted without rework:
- Registration and accuracy are reported against the project control network, with point-to-point accuracy of 2–6mm typical and target residuals documented—consistent with ICSM SP1 control standards where statutory connection is required.
- Geospatial referencing uses GDA2020 / MGA Zone 51 or your nominated mine grid, in line with WA survey practice and the Licensed Surveyors Act 1909.
- Mine safety and survey obligations under the WA Work Health and Safety (Mines) Regulations 2022 are supported—scanning provides safe, repeatable monitoring evidence for ground control management plans without exposing personnel to hazardous ground.
- Drone-borne scanning, where aerial capture suits large pits or dumps, is flown by CASA-certified operators under a Remote Operator's Certificate.
For statutory or legally defensible deliverables, work is supervised by a licensed surveyor and data is delivered ready for incorporation into your mine survey plans.
Why ISS for laser scanning in Kalgoorlie
Generic scanning bureaus can run a scanner; far fewer understand a live gold operation. ISS surveyors have worked across the full range of Goldfields methods—Super Pit bench work, narrow-vein development 800m underground, and multi-feed processing plants—so we plan scans that answer the engineering question, not just collect points.
We coordinate through Kalgoorlie to keep mobilisation tight for regional sites, and we deliver in the formats your planning and engineering teams already use—Surpac, Vulcan, Deswik, AutoCAD and Recap—in your mine grid. With Western Australia's resources sector contributing $198.6 billion and 43.6% of the state economy, and an acute surveyor shortage across WA, reliable, mining-literate scanning support is genuinely hard to secure. That is the gap ISS fills for Goldfields operators.
Frequently asked questions
How accurate is 3D laser scanning on a Goldfields site?
Terrestrial laser scanning typically achieves 2–6mm point accuracy at standard 10–50m working ranges, with registration verified against your mine control network. That is ample for Super Pit wall-movement detection, processing-plant clash detection and mill or crusher alignment. For sub-millimetre mechanical alignment we supplement scanning with total station or laser-tracker work.
Can you scan the Super Pit or a plant while it stays in production?
Yes. Scanning is non-contact and captured remotely, so high walls can be measured without entering hazardous ground, and most plant areas can be scanned around live operations with appropriate permits and exclusion controls. Some tie-in areas are best captured during a scheduled shutdown—we plan capture sequences to fit your window.
What deliverables and formats do you provide for Kalgoorlie operators?
Registered point clouds in E57, LAS/LAZ, RCP/RCS or PTS; 2D plans and sections; mesh and solid 3D/CAD models; and clash and deviation reports. We deliver in mine-package formats for Surpac, Vulcan and Deswik, referenced to GDA2020 / MGA Zone 51 or your local mine grid.
How much does laser scanning cost in the Goldfields and how fast is turnaround?
Most Goldfields scanning projects range from around AUD $3,000 for a single plant area or pit section to $15,000-plus for full-facility digital twins, depending on scope, access and deliverables, plus mobilisation. On-site capture is usually one to three days; registered point cloud delivery follows in 2–5 days, with rush processing available for shutdowns.
Request a quote
If you operate in Kalgoorlie or the Eastern Goldfields and need millimetre-accurate 3D laser scanning—Super Pit wall monitoring, gold plant as-builts, underground void survey or precision alignment—talk to a surveyor who knows your operation.
Call ISS on 0407 057 015 to scope your scanning project, or explore our Kalgoorlie Goldfields survey services and industrial laser scanning capability. We provide a detailed proposal covering methodology, accuracy, safety and deliverables—and mobilise to site on your timeline.