OS Explorer Map OL 61 shows the northern part of the Cairngorms National Park, plus the area around Grantown-on-Spey & Bridge of Avon. You can explore the Dava Way & the Speyside Way, or aim for the remote Carn Kitty (521m). This map replaces the previous OS Explorer map 419 for this area. With this map you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The OS Explorer map for Grantown-on-Spey & Hills of Cromdale is available in both the standard paper version & weatherproof ' Active' version.