UTM Grid Zones of the World
![](http://santiampsp.org/wp-content/uploads/2020/10/utmworld.gif)
Where am I? Universal Transverse Mercator is a way to answer this question in meters from a nearby meridian.
In the UK: Along the corridor and up the stairs. Easting before Northing.
In the US: Read right, then up.
UTM Grids in the Santiam Pass region
![](http://santiampsp.org/wp-content/uploads/2021/11/GaiaGPS-2021-11-04T13_23_12-2-785x1024.jpg)
Living on the Edge in 24k
Headed into the rising sun in Eastern Oregon just past the Big Summit Prairie… Zones collide! Its all a matter of perception, uh…I mean projection.
![](http://santiampsp.org/wp-content/uploads/2020/10/10T_11T_UTM_24k-791x1024.jpg)
Living on the Edge in 100k
![](http://santiampsp.org/wp-content/uploads/2020/10/10T_11T_UTM_100k-1-791x1024.jpg)
On the web
https://upload.wikimedia.org/wikipedia/commons/b/b7/Universal_Transverse_Mercator_zones.svg – image of the UTM system
http://geokov.com/education/utm.aspx
https://www.maptools.com/tutorials/utm/quick_guide
Math and programming – some serious math ahead!
https://www.movable-type.co.uk/scripts/geodesy-library.html
https://github.com/chrisveness/geodesy/blob/master/latlon-ellipsoidal-datum.js
https://arxiv.org/pdf/1002.1417.pdf
https://www.movable-type.co.uk/scripts/latlong-utm-mgrs.html
Conversion
https://www.ngs.noaa.gov/NCAT/