The Altitude Machine — Highest & Lowest Points Inside a City or County
Search Area
City or County (e.g., "Boulder County, CO" or "Leiden, NL")
Search
What to Display
5 Highest & 5 Lowest
10 Highest & 10 Lowest
20 Highest & 20 Lowest
50 Highest & 50 Lowest
Sampling Points (higher = better, slower)
2000
4000
6000
10000
50000
100000
Pin Separation
5 m
20 m
50 m
100 m
150 m
200 m
Applied independently to Highs & Lows. Changes here re-apply instantly with cached samples.
Utility Overlays
Enbridge Gas
Hydro
Water
Sewer
Point each overlay URL in
UTILITY_SOURCES
(GeoJSON / WMS / XYZ).
Display Altitude
Clear
Map
Highest points
Lowest points
Export CSV
Export TXT (comma)
Top Highest Points
#
Elevation (m)
Latitude
Longitude
Top Lowest Points
#
Elevation (m)
Latitude
Longitude
Map ©
OpenStreetMap
contributors · Tiles: OSM / Esri World Imagery · Elevation: Open-Elevation