Alder, MT Elevation & Topographic Map

Elevation
5,190 ft 1,585 m5,160 ft 1,575 m5,150 ft 1,570 m5,110 ft 1,560 m5,080 ft 1,550 m5,070 ft 1,545 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
Alder sits at about 5,120 ft (1,560 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
5,120 ft 1,560 m
most residents: 5,120–5,140 ft
Lowest
5,070 ft 1,545 m
on the northwest side
Highest
5,190 ft 1,585 m
at the foot of the Ruby Range
Average
5,120 ft 1,560 m
all land inside the CDP boundary
Alder 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 | 5,120 ft1,560 m |
| Highest point Inside the CDP boundary, at the foot of the Ruby Range | 5,190 ft1,585 m |
| Lowest point Inside the CDP boundary, on the northwest side | 5,070 ft1,545 m |
| Town center USGS map point for Alder | 5,120 ft1,560 m |
| Average of all land | 5,120 ft1,560 m |
Elevation profile, south to north
1.9 mi south to north through the town center.
Altitude Effects
What 5,120 ft means day to day, worked out from the typical elevation.
Water boils at
202.5 °F94.7 °C
vs 212 °F at sea level; USDA: food takes longer to cook.
Air pressure
83% of sea level
24.8 inHg (83.9 kPa): each breath holds 17% less air.
Oxygen equivalent
17.4% at sea level
Air is still 21% oxygen, just thinner. Normal at the coast: 20.9%.
Sunburn
+10% more UV
EPA: UV rises about 2% for every 1,000 ft.
Topographic Map
- Location
- Unincorporated community (census-designated place) in Madison County, Montana, United States
- Population
- 86 2020 Census
- Land area
- 2.0 sq mi
- Density
- 43 per sq mi
- Coordinates
- 45.3238° N, 112.1072° W
- Time zone
- Mountain UTC−7 / −6
- Landform region
- Northern Rocky Mountains
- Drains to
- Jefferson River → Missouri River → Mississippi River → Gulf of America
- ZIP codes 1
- 59710
⤓ 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
- Mammoth6,060 ft
- Virginia City5,870 ft
- Brandon5,700 ft
- Pony5,500 ft
- Sheridan5,140 ft
- Alder5,120 ft
- Ennis4,970 ft
- Jeffers4,940 ft
- McAllister4,890 ft
- Norris4,850 ft
- Twin Bridges4,630 ft
Rankings by typical elevation
- Towns in Montana39th highest of 497
- Towns in Madison County6th highest of 13
Peaks and hills nearest, by height
- Hollowtop Mountain10,610 ft
- Sliderock Mountain, Madison County10,430 ft
- Sheep Mountain, Madison County9,690 ft
- Baldy Mountain, Madison County9,620 ft
- Benson Peak8,482 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).
- 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.
- Alder 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); BTS time zones; NOAA NGS survey heights. All public domain.