The route of E1 through Børgefjell Nasjonalpark appears wrong. According to https://s3-eu-west-1.amazonaws.com/turistforeningen/files/6df56f7315c200764d8f8098113b0f58d97bd2c0.pdf
the route lies further west. See also https://outdoors.stackexchange.com/a/18314/566 .

Ilpenhof is gesloopt. Er zijn hier nu huizen in aanbouw.
Zie de BAG: https://bagviewer.kadaster.nl/lvbag/bag-viewer/index.html#/?searchQuery=reigerstraat%2012,%20il&resultOffset=0&detailsObjectId=0852010000008644&objectId=0852100000012777&geometry.x=125474.232&geometry.y=497610.081&zoomlevel=6