Coos, Lower Umpqua, and Siuslaw Reservation Elevation & Topographic Map

Topographic elevation map of Coos, Lower Umpqua, and Siuslaw Reservation, Oregon, shaded from sea level on the Pacific Ocean to 2,970 ft on the south side
Elevation
2,970 ft 905 m2,230 ft 680 m1,860 ft 565 m1,110 ft 340 m370 ft 115 m0 ft 0 m
Zoom in for contour lines
USGS 3DEP · U.S. Census Bureau
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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.
Area
Fades everything outside the official reservation boundary (US Census).

Elevation Data

Coos, Lower Umpqua, and Siuslaw Reservation averages about 1,500 ft (455 m) above sea level across all its land. Its ground runs from sea level on the Pacific Ocean to 2,970 ft on the south side.

Average elevation
1,500 ft 455 m
all land inside the reservation
Highest
2,970 ft 905 m
on the south side
Lowest
0 ft 0 m
at sea level on the Pacific Ocean

Coos, Lower Umpqua, and Siuslaw Reservation spans about 2,970 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.

FigureElevation
Average of all land1,500 ft455 m
Highest point
Inside the reservation, on the south side
2,970 ft905 m
Lowest point
Where the land meets the Pacific Ocean
0 ft0 m

Elevation profile, west to east

3.0 mi west to east through the middle of Coos, Lower Umpqua, and Siuslaw Reservation.

Topographic Map

Topographic elevation map of Coos, Lower Umpqua, and Siuslaw Reservation, Oregon, shaded from sea level on the Pacific Ocean to 2,970 ft on the south side
Census reservation boundary (dashed) over shaded terrain, with contours every 500 ft (152 m).
Location
Reservation, with off-reservation trust land in Oregon, United States (U.S. Census Bureau)
Population
84 2020 Census
Land area
23.2 sq mi
Density
3.6 per sq mi
Time zone
Pacific UTC−8 / −7
Landform region
Pacific Border 98%
Drains to
Pacific Ocean
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Sources: U.S. Census Bureau, USGS

Nearby Places

Nearest tribal lands nearest, by average

  1. Warm Springs Reservation3,170 ft
  2. Cow Creek Reservation2,150 ft
  3. Coos, Lower Umpqua, and Siuslaw Reservation1,500 ft
  4. Grand Ronde Community940 ft
  5. Coquille Reservation870 ft
  6. Siletz Reservation570 ft

Rankings by average elevation

All 2 towns in the reservation by typical elevation
  1. Coos Bay partly95 ft
  2. North Bend partly87 ft
How we measure
  • Average: every USGS 3DEP bare-earth cell of land inside the Census reservation boundary (TIGER/Line AIANNH, 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.
  • 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, −4 ft at 43.3429° N, 124.3765° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
  • Name: the Census Bureau's legal or statistical area name, as published; the nation's own name may differ.
  • Population: 2020 Census residents of the blocks inside the boundary.
  • Nearby Places: nearest tribal lands 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 reservation 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 reservation.
  • 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); NOAA NGS survey heights; BTS time zones. All public domain.