Gilliam County elevation and terrain tools
Eastern Oregon • County seat: Condon
Gilliam County runs south from the Columbia River across rolling wheat plateau, with the John Day River canyon along its western edge. The plateau is broad and gentle, so most of the steep ground lies along the canyon walls and side draws.
Open the mapLidar coverage
Lidar projects that cover Condon, from the USGS 3DEP index and DOGAMI’s project records. Other parts of the county may come from other projects; the coverage guide explains how to check any spot.
Coverage details are temporarily unavailable.
Property boundaries
The county assessor’s parcel service for Gilliam County is not available in the Property tool yet, so taxlots cannot be selected here. Draw your area on the map instead; the parcel lines overlay still shows taxlot lines.
Tools for Gilliam County
A PDF terrain report for a taxlot: hillshade, contours, slope and elevation statistics.
How the tool worksContour lines at the interval you choose, on the map and as vector files.
How the tool worksHours of direct sun on any day of the year, with shadows cast by the terrain.
How the tool works