Grand County's parcel viewer is useful, but it is not a survey

Grand County’s online parcel viewer is a fine place to begin a boundary question, and a poor place to end one. The map is built from public records that keep changing, so the lines on your screen are a snapshot of paperwork, not a measured edge of dirt. The viewer does not replace a site survey, carries no warranty of accuracy, and is not a legal representation of the features it draws.

The gap shows up the moment a real-world feature enters the picture: a fence line, a driveway, a shed crowding the setback, the bank of the Colorado River cutting across a lot, or the building envelope on a steep mountain parcel. A line that looks crisp on a screen can sit several feet off the ground truth, which is close enough to plan around and nowhere near enough to settle a fence dispute or stake a foundation.

Lean on the viewer for what it does well. Parcel shape, nearby roads, links to the zoning map, and owner-record clues all come through clearly, and that is genuinely useful homework before you ever call anyone.

When the exact line is what is at stake, though, the next step is a survey from a licensed surveyor, not a sharper zoom on the map. The viewer points you in the right direction; only the survey tells you where the corner actually is.