diff --git a/geau/R/data.r b/geau/R/data.r
index 09a94a9470fe62cd2c5bd4cb2a31d85e3bb6a9db..0dd80478d6416359ac78e29a856f923ebfd89baf 100644
--- a/geau/R/data.r
+++ b/geau/R/data.r
@@ -63,4 +63,12 @@
 #' A dataset containing the 2018 version of CLC information for so-ii
 #'
 #' @format sf object
-"so_ii_clc"
\ No newline at end of file
+"so_ii_clc"
+
+#' Hydrographic network within the so-ii perimeter
+#'
+#' A dataset containing the official hydrographic network from the BD TOPAGE
+#' within the so-ii perimeter.
+#'
+#' @format sf data.frame 125 rows, 4 variables
+"so_ii_hydro"