Keystone, SD Elevation & Topographic Map
Elevation
5,010 ft 1,525 m4,830 ft 1,470 m4,740 ft 1,445 m4,550 ft 1,390 m4,370 ft 1,330 m4,280 ft 1,305 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.
- Town area
- Fades everything outside the official town limits (US Census).
Elevation Data
Keystone sits at about 4,560 ft (1,390 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
4,560 ft 1,390 m
most residents: 4,340–4,760 ft
Lowest
4,280 ft 1,305 m
on the northeast side
Highest
5,010 ft 1,525 m
at the foot of the Bald Hills
Average
4,580 ft 1,395 m
all land inside town limits
Keystone spans about 730 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 | 4,560 ft1,390 m |
| Highest point Inside town limits, at the foot of the Bald Hills | 5,010 ft1,525 m |
| Lowest point Inside town limits, on the northeast side | 4,280 ft1,305 m |
| Town center USGS map point for Keystone | 4,340 ft1,320 m |
| Average of all land | 4,580 ft1,395 m |
| Nearest peak Black Elk Peak, 4.3 mi west of the town limits | 7,200 ft2,195 m |
Elevation profile, west to east
2.0 mi west to east through the town center.
Altitude Effects
What 4,560 ft means day to day, worked out from the typical elevation.
Water boils at
203.5 °F95.3 °C
vs 212 °F at sea level; USDA: food takes longer to cook.
Air pressure
85% of sea level
25.3 inHg (85.7 kPa): each breath holds 15% less air.
Oxygen equivalent
17.7% at sea level
Air is still 21% oxygen, just thinner. Normal at the coast: 20.9%.
Sunburn
+9% more UV
EPA: UV rises about 2% for every 1,000 ft.
Topographic Map
- Location
- Town in Pennington County, South Dakota, United States
- Population
- 261 2024 est.
- Land area
- 3.0 sq mi
- Density
- 87 per sq mi
- Coordinates
- 43.8955° N, 103.4182° W
- Time zone
- Mountain UTC−7 / −6
- Landform region
- Great Plains
- Drains to
- Battle Creek → Cheyenne River → Missouri River → Mississippi River → Gulf of America
- ZIP codes 1
- 57751
⤓ 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
Nearby towns by typical elevation
- Custer5,340 ft
- Hill City5,030 ft
- Keystone4,560 ft
- Johnson Siding4,480 ft
- Colonial Pine Hills4,060 ft
- Blackhawk3,560 ft
- Hermosa3,320 ft
- Rapid City3,320 ft
- Fairburn3,300 ft
- Rapid Valley3,170 ft
- Green Valley3,050 ft
Rankings by typical elevation
- Towns in South Dakota7th highest of 1,383
- Towns in Pennington County2nd highest of 34
Peaks and hills nearest, by height
- Black Elk Peak7,200 ft
- Green Mountain7,160 ft
- Old Baldy Mountain, Pennington County5,580 ft
- Ingersoll Peak5,340 ft
- Bear Butte4,427 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the town limits, 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 town limits (TIGER, Jan 1 2026).
- 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).
- Altitude effects: standard-atmosphere formulas applied to the typical elevation; UV from EPA's rule of thumb (about 2% per 1,000 ft).
- 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.
- Sources: USGS 3DEP, GNIS, Watershed Boundary Dataset and physiographic provinces; U.S. Census Bureau (boundaries, 2020 blocks, 2024 population estimates, Gazetteer areas, ZIP code areas); BTS time zones; NOAA NGS survey heights. All public domain.