Know What's Below Before You Dig.
Mile High Locating provides professional private utility locating across Colorado — the lines 811 won't find.
Why Private Locates Matter
811 Has Limits
Calling 811 only marks public utility lines. Private lines — like irrigation, secondary electric, and private gas — are invisible to 811 and pose the greatest strike risk on private property.
Strikes Are Costly
A single utility strike can mean project shutdowns, repair bills, liability exposure, and serious injury. A private locate takes hours — delays and damages take weeks.
Colorado Law & You
Colorado's Underground Damage Prevention Law (CRS 9-1.5) requires excavators to take reasonable precautions. Private locates are your documentation that you did.
Our Services
Professional locating for the lines 811 won't mark.
General Private Line Locating
Comprehensive electromagnetic sweep to identify and mark all detectable private utilities on a property before excavation begins. Ideal for contractors on unfamiliar sites or homeowners planning ground disturbance.
Learn more about general private line locatingPrivate Gas Line Locating
Locate and mark private gas lines — service laterals, propane lines, and meter-to-structure runs that 811 will never cover.
Learn more about private gas line locatingSecondary Electric Locating
Trace and mark secondary electric lines to outbuildings, garages, and outdoor equipment — privately owned and invisible to 811.
Learn more about secondary electric locatingWho We Serve
Contractors & Excavators
We help GCs and excavation contractors protect project timelines and reduce liability. Fast turnaround, clear markings, and locate documentation you can keep on file.
- Pre-construction sweeps
- Foundation & footing work
- Trenching & grading
- Directional boring
Homeowners
Planning a fence, landscaping, or addition? Before any digging on your property, know exactly where your private lines run. One locate can prevent a very expensive mistake.
- Fence installation
- Landscaping & grading
- Patios, decks & footings
- Drainage & irrigation
What Our Clients Say
"Called Mile High on a Thursday, they were on site Friday morning. Found an unmarked gas line running right through our dig zone. Saved us from what could have been a serious incident."
"We were about to install a fence and had no idea there was a secondary electric line to our detached garage. Worth every penny — the repair bill alone would have been ten times the cost of the locate."
Mile High Locating is a Colorado-based, owner-operated business. When you call, you're talking directly to the locator — no dispatch, no middleman. We use professional-grade electromagnetic locating equipment (Radiodetection / Vivax-Metrotech) to find lines accurately.