Morrow County, OR Elevation & Topographic Map
Elevation
5,930 ft 1,810 m4,510 ft 1,375 m3,810 ft 1,160 m2,390 ft 730 m970 ft 295 m260 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
Morrow County averages about 2,350 ft (715 m) above sea level across all its land. Its ground runs from 260 ft on the north side to 5,930 ft on Black Mountain.
Average elevation
2,350 ft 715 m
all land inside the county
Highest
5,930 ft 1,810 m
on Black Mountain
Lowest
260 ft 80 m
on the north side
Morrow County spans about 5,670 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 | 2,350 ft715 m |
| Highest point Inside the county, on Black Mountain (3DEP terrain model; no NGS survey height) | 5,930 ft1,810 m |
| Lowest point Inside the county, on the north side | 260 ft80 m |
Elevation profile, south to north
59 mi south to north through Boardman.
Topographic Map
- Location
- County in Oregon, United States
- Population
- 12,360 2024 est.
- Land area
- 2,030.5 sq mi + 17.1 sq mi water
- Density
- 6.1 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
- Grant County4,700 ft
- Wheeler County3,710 ft
- Umatilla County2,650 ft
- Morrow County2,350 ft
- Klickitat County, WA2,070 ft
- Gilliam County1,990 ft
- Benton County, WA990 ft
Rankings by average elevation
- Counties in Oregon18th highest of 36
- Counties in the United States519th highest of 3,151
Peaks and hills highest inside
- Black Mountain5,930 ft
- Arbuckle Mountain5,850 ft
- Bald Mountain, Morrow County5,770 ft
- Kelly Mountain5,730 ft
- Madison Butte5,700 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; it is a named summit, so its height is the peak method: the 3DEP top on a ~7 ft (2 m) window, or the NGS published height when a survey mark sits within 160 ft (50 m) of it. 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.
- Pits: the lowest point is the lowest ground outside closed hollows (quarry floors, mine pits, terrain-model artifacts): any hollow under 0.4 sq mi (1 km²), and any hollow under 2 sq mi (5 km²) whose floor is more than 100 ft (30 m) below its rim; and outside patches below sea level of under 0.4 sq mi (1 km²). The single lowest 3DEP cell, 260 ft at 45.9060° N, 119.5504° W, is in such a hollow or patch and is not counted.
- 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.