Gilliam County, OR Elevation & Topographic Map
Elevation
4,290 ft 1,305 m3,280 ft 1,000 m2,780 ft 845 m1,770 ft 540 m770 ft 235 m270 ft 80 m
Zoom in for contour lines
USGS 3DEP · U.S. Census Bureau
How to use this mapviews, tools and data
- Elevation
- Ground colored by height from green (lowest) to white (highest), with contour lines every 40–500 ft (USGS data).
- Satellite
- A 2016 satellite photo at 33 ft (10 m) detail; contours off.
- 3D
- Tilt and turn the terrain; hills are raised 1.5×, or set ×1 for true height.
- Click or tap anywhere
- The exact elevation of that spot in ft and m.
- Measure
- Pick two points for the climb, descent and grade along a straight line.
- County area
- Fades everything outside the official county boundary (US Census).
Elevation Data
Gilliam County averages about 1,990 ft (605 m) above sea level across all its land. Its ground runs from 270 ft on the northwest side to 4,290 ft on the southeast side.
Average elevation
1,990 ft 605 m
all land inside the county
Highest
4,290 ft 1,305 m
on the southeast side
Lowest
270 ft 80 m
on the northwest side
Gilliam County spans about 4,020 ft of height, so no single spot tells the whole story. The ruler shows where most of its land lies, and where the other numbers you'll see come from.
| Figure | Elevation |
|---|---|
| Average of all land | 1,990 ft605 m |
| Highest point Inside the county, on the southeast side | 4,290 ft1,305 m |
| Lowest point Inside the county, on the northwest side | 270 ft80 m |
Elevation profile, south to north
47 mi south to north through Condon.
Topographic Map
- Location
- County in Oregon, United States
- Population
- 1,971 2024 est.
- Land area
- 1,204.7 sq mi + 18.1 sq mi water
- Density
- 1.6 per sq mi
- Time zone
- Pacific UTC−8 / −7
- Landform region
- Columbia Plateau
- Drains to
- Pacific Ocean
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS
Nearby Places
Neighboring counties sharing a border, by average
- Wheeler County3,710 ft
- Wasco County2,520 ft
- Morrow County2,350 ft
- Klickitat County, WA2,070 ft
- Gilliam County1,990 ft
- Sherman County1,850 ft
Rankings by average elevation
- Counties in Oregon23rd highest of 36
- Counties in the United States627th highest of 3,151
Peaks and hills highest inside
- Black Butte, Gilliam County3,420 ft
- Zero Butte3,350 ft
- Coyote Butte, Gilliam County3,050 ft
- Horse Mountain, Gilliam County2,950 ft
- Igo Butte2,940 ft
How we measure
- Average: every USGS 3DEP bare-earth cell of land inside the Census county boundary (TIGER/Line, Jan 1 2026), weighted equally, on a 2 arc-second (≈200 ft, 62 m) grid, coarsened from 1 arc-second so the whole area fits one run. Land means the boundary minus Census area water (on this grid, water areas of at least half a cell).
- Highest and lowest: the highest land cell, re-read at 1 arc-second around the 25 highest grid cells. Lowest: the lowest land cell, re-read at 1 arc-second around the 25 lowest grid cells; coastal ground within 3 ft (1 m) of named tidal water counts as sea level.
- Nearby Places: neighboring counties and rankings use each one's average elevation, on its own grid, the same figure its page shows. Peaks and hills: the highest summits inside the county with at least 980 ft (300 m) of prominence, then the highest federal (GNIS) summits inside it when there are fewer than 5; each is the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a usable survey mark sits within 160 ft (50 m) of it (shown as published).
- Towns: each town's typical elevation (population-weighted median of its own 2020 blocks at 1 arc-second); a town is listed when any of its 2020 residents live in the county.
- Rounding: computed heights are rounded to 10 ft (5 m), or to 1 ft (1 m) under 100 ft; 3DEP is good to about a meter, not a foot. Published figures (NGS survey heights) are shown as their publisher gives them.
- Datum: North American Vertical Datum of 1988 (NAVD 88). NGS plans to replace NAVD 88 with a new datum (NAPGD2022); heights will then shift slightly.
- Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (TIGER boundaries and water, 2020 blocks, 2024 population estimates, county adjacency); NOAA NGS survey heights; BTS time zones. All public domain.