Great Falls Crossing, VA Elevation & Topographic Map
Elevation
420 ft 125 m390 ft 120 m370 ft 115 m340 ft 105 m310 ft 95 m300 ft 90 m
Contours every 40 ft, bold every 200 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
Great Falls Crossing sits at about 360 ft (110 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
360 ft 110 m
most residents: 340–360 ft
Lowest
300 ft 90 m
on the east side
Highest
420 ft 125 m
on the southwest side
Average
350 ft 105 m
all land inside the CDP boundary
Great Falls Crossing spans about 120 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.
| Figure | Elevation |
|---|---|
| Typical Where people live: half of residents higher, half lower | 360 ft110 m |
| Highest point Inside the CDP boundary, on the southwest side | 420 ft125 m |
| Lowest point Inside the CDP boundary, on the east side | 300 ft90 m |
| Town center USGS map point for Great Falls Crossing | 340 ft100 m |
| Airport (IAD) FAA airport elevation, the highest point of its runways, 7.2 mi west of the CDP boundary | 312 ft95 m |
| Average of all land | 350 ft105 m |
Elevation profile, west to east
0.7 mi west to east through the town center.
Topographic Map
- Location
- Unincorporated community (census-designated place) in Fairfax County, Virginia, United States
- Population
- 1,392 2020 Census
- Land area
- 0.6 sq mi
- Density
- 2,336 per sq mi
- Coordinates
- 38.9808° N, 77.3256° W
- Time zone
- Eastern UTC−5 / −4
- Landform region
- Piedmont
- Drains to
- Potomac River → Atlantic Ocean
- Airport
- Washington Dulles International (IAD) 312 ft
- ZIP codes 1
- 20194
⤓ Download this map
WebP, 1200 × 900. Free to use: credit “ElevationOf.com” with a link to this page.
Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Herndon390 ft
- Reston380 ft
- Hutchison380 ft
- Oak Grove370 ft
- Great Falls Crossing360 ft
- McNair350 ft
- Great Falls330 ft
- Wolf Trap320 ft
- Dranesville320 ft
- Sugarland Run280 ft
- Lowes Island280 ft
Rankings by typical elevation
- Towns in Virginia399th highest of 700
- Towns in Fairfax County24th highest of 69
Peaks and hills nearest, by height
- Stony Man4,011 ft
- Sugarloaf3,450 ft
- Old Rag Mountain3,285 ft
- Third Hill Mountain2,170 ft
- Quirauk Mountain2,140 ft
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, 300 ft at 38.9796° N, 77.3196° W, is in such a hollow or patch and is not counted.
- 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.
- Great Falls Crossing 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.