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The 60-80% Stockpile Survey Labour Reduction Nobody's Budgeting For

  • Writer: Harlon Mark
    Harlon Mark
  • Jul 25
  • 2 min read

Stockpile surveying is one of the most routine, recurring tasks at any mine or quarry, which also makes it one of the places where a labour-hour reduction compounds fastest, month after month, rather than being a one-time saving.


What the documented numbers actually show

One documented quarry deployment saw a 60% reduction in stockpile-survey man-hours, with crew time falling from 40 to 16 hours per month once drone survey replaced manual methods. A separate program logged an 80% drop in field time, reaching full return on investment within six months. Both figures point to the same underlying pattern: stockpile survey is one of the most mature, best-documented aerial intelligence use cases in mining, precisely because the labour-hour savings are so directly measurable against the prior manual process.


Why this is easier to quantify than most other aerial intelligence benefits

A lot of the value from aerial inspection programs, earlier defect detection, better trend data, is real but takes time and a bit of judgment to translate into a dollar figure. Stockpile survey labour hours aren't like that: you know exactly how many crew-hours the old method took, you know exactly how many the new method takes, and the difference is immediately calculable without needing to estimate anything.

That's precisely why this is often the easiest single line item to build an initial business case around, it doesn't require projecting avoided risk or estimating the value of earlier detection, just comparing two directly measured numbers.


Why the savings compound rather than stay flat

A 60-80% reduction in survey man-hours isn't a one-time event, it applies every single month a recurring survey happens. A quarry running monthly stockpile surveys captures that reduction twelve times a year, every year the program continues, which is a meaningfully different value proposition than a one-time efficiency gain.


What this makes practical that wasn't before

Beyond the direct labour savings, freeing up 24-32 hours of crew time per month (based on the documented 40-to-16-hour example) means that same crew capacity becomes available for other work, inventory reconciliation, additional site inspection, or simply reduced overtime, rather than being consumed entirely by a routine measurement task.


The practical takeaway

If stockpile surveying currently consumes a predictable, measurable block of crew time every month, that's exactly the kind of cost this technology has the most directly documented track record of reducing, and the ROI math here doesn't require much estimation, just comparing your actual current hours to what a drone program would take instead.


This is a focused look at one part of a much larger picture, read the complete guide to mine site aerial intelligence for the full picture on no-shutdown surveying, pit progression monitoring, and building a recurring program. See theAnnual Mining Intelligence Program™ for current pricing.

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