diff --git a/env.R b/env.R
index f0b55a1a3ec650ac161cf1bb0bd4c2cf96b175ae..4c86f6990cc6bb258504322ac0841c9877939efb 100644
--- a/env.R
+++ b/env.R
@@ -15,6 +15,10 @@ repoParams$user <- repoParams$info[[7]]
 # use this guess to set a data path
 # default
 dPath <- "unkown - find this line in env.R and fix it!"
+if (repoParams$sysname == "Darwin") {
+  # we're on a Mac (local) so we can set the data path to the Resource drive (if mounted)
+  dPath <- "/Volumes/Resource/CivilEnvResearch/Public/SERG/data/"
+}
 if (repoParams$nodename == "srv02405") {
   # we're on the UoS RStudio server so we can set the data path to J: (as mounted)
   dPath <- path.expand("/mnt/SERG_data/")