Drones for surveying and photogrammetry
Photogrammetry turns many overlapping photos into maps and 3D-ish models. Drones make the photography portion efficient. Legal surveying — where stakes matter for boundaries and elevations — is a licensed profession we do not impersonate.
Overlap, sidelap, and flight grids
Software correlates features between images. If coverage is thin or lighting swings wildly between passes, models gap or warp. Planning a grid is part science, part site-specific habit — we align to your downstream tool if you tell us which photogrammetry stack you use.
Ground control and scale
Consumer GPS can be “good enough” for progress mosaics; it is often not good enough for contract-grade earthwork volumes without ground control points and survey discipline. When precision is non-negotiable, hire a surveyor and let us execute the flight plan they specify.
The USGS publishes an approachable definition of photogrammetry that matches how we talk with clients about measurement expectations.
Repeat visits
Monthly or quarterly re-flights from similar waypoints help teams talk about change without debating memory. That pattern shows up in construction progress and pre-construction stories too.