Black Point-Green Point, CA Elevation & Topographic Map

Topographic elevation map of Black Point-Green Point, California, shaded from sea level level on the Petaluma River to 350 ft on the west side
Elevation
350 ft 105 m260 ft 80 m220 ft 65 m130 ft 40 m44 ft 13 m0 ft 0 m
Contours every 100 ft, bold every 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.
Area
Fades everything outside the official CDP boundary (US Census).

Elevation Data

Black Point-Green Point sits at about 88 ft (27 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.

Typical elevation
88 ft 27 m
most residents: 8–120 ft
Lowest
0 ft 0 m
at sea level on the Petaluma River
Highest
350 ft 105 m
on the west side
Average
65 ft 20 m
all land inside the CDP boundary

Black Point-Green Point spans about 350 ft of height, so no single spot tells the whole story. The ruler shows where its people live, and where the other numbers you'll see come from.

FigureElevation
Typical
Where people live: half of residents higher, half lower
88 ft27 m
Highest point
Inside the CDP boundary, on the west side
350 ft105 m
Lowest point
Where the land meets the Petaluma River
0 ft0 m
Airport (DVO)
FAA airport elevation, the highest point of its runways, 1.7 mi northwest of the CDP boundary
4 ft1 m
Average of all land65 ft20 m
Nearest peak
Big Rock Ridge, 4.6 mi southwest of the CDP boundary
1,880 ft575 m

Elevation profile, west to east

2.8 mi west to east through the middle of Black Point-Green Point.

Topographic Map

Topographic elevation map of Black Point-Green Point, California, shaded from sea level level on the Petaluma River to 350 ft on the west side
CDP boundary (dashed) over shaded terrain, with contours every 20 ft (6 m).
Location
Unincorporated community (census-designated place) in Marin County, California, United States
Population
1,431 2020 Census
Land area
2.7 sq mi + 0.2 sq mi water
Density
523 per sq mi
Coordinates
38.1107° N, 122.5191° W
Time zone
Pacific UTC−8 / −7
Landform region
Pacific Border
Drains to
Pacific Ocean
Airport
Gnoss Field (DVO) 4 ft
ZIP codes 1
94945
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Sources: U.S. Census Bureau, USGS, FAA

Nearby Places

How we measure
  • Typical elevation: the population-weighted median: every 2020 Census block inside the CDP boundary, at its USGS 3DEP height, weighted by the people who live there. Half of residents live higher, half lower.
  • Lowest, highest, average: USGS 3DEP bare-earth heights on a 1 arc-second (≈100 ft, 30 m) grid, land only, inside the Census CDP boundary (TIGER, Jan 1 2026).
  • 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 38.1015° N, 122.4935° 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: nearby towns and rankings use each town's typical elevation, so every town is compared like for like. Rankings count every city, town, township and census-designated place, including places inside a town. Peaks and hills: the nearest summits with at least 980 ft (300 m) of prominence within 62 mi (100 km), then federal (GNIS) summits within 16 mi (25 km) 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).
  • 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 (FAA airport elevation, 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.
  • Black Point-Green Point is an unincorporated community; figures cover the census-designated place, a statistical area.
  • Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, Gazetteer areas, ZIP code areas); FAA airport data; BTS time zones; NOAA NGS survey heights. All public domain.