Complex sentence: Albanov's aim was to reach Hvidtenland (now Eva Island), the northeastermost island of Franz Josef Land as it was marked on Fridtjof Nansen's inaccurate map, full of dotted lines.
Split into simpler sentences: Albanov's aim was to reach Hvidtenland (now Eva Island), the northeastermost island of Franz Josef Land. He used Fridtjof Nansen's inaccurate map, full of dotted lines.