diff --git a/handbook/survey/coord2.html b/handbook/survey/coord2.html
index 9de09511c..a2ecade07 100644
--- a/handbook/survey/coord2.html
+++ b/handbook/survey/coord2.html
@@ -14,12 +14,15 @@
Basic Coordinate Systems.
Geographical fixed points on Loser
- The Austrian Kataster areas
+ The Austrian Kataster areas
SD 10 Handbook: Vergleich der ÖK 50 mit der neuen ÖK 50-UTM
- Location fixing: How to obtain a fixed point for a cave survey
+ UK Caving: How to obtain a fixed point for a cave survey (very good)
-
Surveying in Austria does not just use the latitude and longitude you may be familiar with from Google maps, your phone etc. +
Surveying in Austria does not just use the latitude and longitude you may be familiar with from Google maps, your phone etc.
+ +Our grid conversion tool: convert a location
+
All our caves and locations in our survex files process data in the UTM33N coordinate system, numbers which look like this:
| Northing | Easting | Altitude |
|---|