La Alianza, PR Elevation & Topographic Map
Elevation
760 ft 230 m690 ft 210 m650 ft 200 m580 ft 180 m510 ft 155 m480 ft 145 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 Census boundary (US Census).
Elevation Data
La Alianza sits at about 590 ft (180 m) above sea level, worked out from 2020 Census block heights on USGS 3DEP, weighted by residents.
Typical elevation
590 ft 180 m
most residents: 520–610 ft
Lowest
480 ft 145 m
on the northeast side
Highest
760 ft 230 m
on the southeast side
Average
580 ft 175 m
all land inside the Census boundary
La Alianza spans about 280 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 | 590 ft180 m |
| Highest point Inside the Census boundary, on the southeast side | 760 ft230 m |
| Lowest point Inside the Census boundary, on the northeast side | 480 ft145 m |
| Airport (ABO) FAA airport elevation, the highest point of its runways, 5.7 mi northwest of the Census boundary | 21 ft6 m |
| Average of all land | 580 ft175 m |
Elevation profile, south to north
1.1 mi south to north through the middle of La Alianza.
Topographic Map
- Location
- Community (census-designated) in Arecibo Municipio, Puerto Rico, United States
- Population
- 2,265 2020 Census
- Land area
- 1.1 sq mi
- Density
- 1,987 per sq mi
- Coordinates
- 18.3958° N, 66.5986° W
- Time zone
- Atlantic UTC−4, no daylight saving
- Drains to
- Closed basin (does not reach the sea)
- Airport
- Antonio/Nery/Juarbe Pol (ABO) 21 ft
- ZIP codes 1
- 00688
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Sources: U.S. Census Bureau, USGS, FAA
Nearby Places
Nearby towns by typical elevation
- Frontón1,070 ft
- Pajonal620 ft
- La Alianza590 ft
- Búfalo420 ft
- Sabana Hoyos410 ft
- Tiburones300 ft
- Imbéry250 ft
- Animas200 ft
- Bajadero87 ft
- La Luisa52 ft
- Garrochales40 ft
Rankings by typical elevation
- Towns in Puerto Rico36th highest of 214
- Towns in Arecibo Municipiohighest of 4
Peaks and hills nearest, by height
- Monte Jayuya4,310 ft
- Monte Guilarte3,954 ft
- El Toro3,480 ft
- Loma Correa940 ft
- Cerro Pelota840 ft
How we measure
- Typical elevation: the population-weighted median: every 2020 Census block inside the Census 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 Census 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, 460 ft at 18.4021° N, 66.5929° 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: Puerto Rico Vertical Datum of 2002 (PRVD02). NGS plans to replace PRVD02 with a new datum (NAPGD2022); heights will then shift slightly.
- La Alianza is an unincorporated community; figures cover the census-designated place, a statistical area.
- Sources: USGS 3DEP, GNIS and Watershed Boundary Dataset; 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.