The active explorer ol 46 is a detailed weatherproof map which covers an area in the north east of the loch lomond and the trossachs national park an area known for its stunning landscapes and munros a replacement for the previous os explorer map 365 for this area the explorer ol 46 covers ben tulaichean ben more stob binnein stuc achroin and ben vorlichcolour swatchassortedbrandordnance surveycolourassorted