Mason County, WA Elevation & Topographic Map
Elevation
6,540 ft 1,995 m4,910 ft 1,495 m4,090 ft 1,245 m2,450 ft 750 m820 ft 250 m0 ft 0 m
Contours every 500 ft, bold every 2,500 ft
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
Mason County averages about 1,000 ft (305 m) above sea level across all its land. Its ground runs from sea level on Case Inlet to 6,540 ft on Mount Stone.
Average elevation
1,000 ft 305 m
all land inside the county
Highest
6,540 ft 1,995 m
on Mount Stone
Lowest
0 ft 0 m
at sea level on Case Inlet
Mason County spans about 6,540 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 | 1,000 ft305 m |
| Highest point Inside the county, on Mount Stone (3DEP terrain model; no NGS survey height) | 6,540 ft1,995 m |
| Lowest point Where the land meets Case Inlet | 0 ft0 m |
Elevation profile, south to north
36 mi south to north through Shelton.
Topographic Map
- Location
- County in Washington, United States
- Population
- 69,632 2024 est.
- Land area
- 959.6 sq mi + 91.5 sq mi water
- Density
- 73 per sq mi
- Time zone
- Pacific UTC−8 / −7
- Landform region
- Pacific Border 98%
- Drains to
- Strait of Juan de Fuca 83%, Pacific Ocean 17%
⤓ 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
- Pierce County2,220 ft
- Jefferson County2,130 ft
- Mason County1,000 ft
- Grays Harbor County510 ft
- Thurston County480 ft
- Kitsap County310 ft
Rankings by average elevation
- Counties in Washington29th highest of 39
- Counties in the United States1,408th highest of 3,151
Peaks and hills highest inside
- Mount Stone6,540 ft
- Mount Washington6,210 ft
- Copper Mountain5,390 ft
- Capitol Peak5,010 ft
- Lightning Peak4,640 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 1 arc-second (≈100 ft, 30 m) grid. Land means the boundary minus Census area water.
- Highest and lowest: the highest land cell; 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; 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, −2 ft at 47.3826° N, 122.8162° W, is in such a hollow or patch and is not counted; this coastal land's lowest point is sea level on the coast.
- 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.