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-rw-r--r--ca_nrc/README.ca_nrc5
1 files changed, 2 insertions, 3 deletions
diff --git a/ca_nrc/README.ca_nrc b/ca_nrc/README.ca_nrc
index f2424d8..c740d5c 100644
--- a/ca_nrc/README.ca_nrc
+++ b/ca_nrc/README.ca_nrc
@@ -213,10 +213,9 @@ Transform between NAD27(76) and NAD83 in Canada.
*License*: [Open Government Licence - Canada](http://open.canada.ca/en/open-government-licence-canada)
*Source CRS*: EPSG:4609 (NAD27(CGQ77))
*Target CRS*: EPSG:8237 (NAD83(CSRS)v2)
-*Used by*: [EPSG:1575 Transformation](https://www.epsg-registry.org/export.htm?gml=urn:ogc:def:coordinateOperation:EPSG::1575)
-*Used by*: [EPSG:1691 Transformation](https://www.epsg-registry.org/export.htm?gml=urn:ogc:def:coordinateOperation:EPSG::1691) for NAD27(CGQ77) -> WGS84
+*Used by*: [EPSG:9240 Transformation](https://www.epsg-registry.org/export.htm?gml=urn:ogc:def:coordinateOperation:EPSG::9240)
-* CQ77SCRS.tif (also known as CQ77NA83.GSB by EPSG)
+* CQ77SCRS.tif (also known as CGQ77-98.gsb by EPSG)
### Canada: Quebec: NAD83(Original) --> NAD83(CSRS) 1997