Page:Curiosities of Olden Times.djvu/232

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Curiosities of Olden Times

the Gretla in several points, and opens a field for exploration and adventure to members of the Alpine Club more novel than the glacier world of Switzerland, and not less interesting to science.

The writer, who visited Iceland in 1862, purposed exploring this mysterious valley from the south, but was unable to find grass for his horses within a day's ride of the glaciers, and was obliged to relinquish his attempt; had he then seen the account of the visit of Björn and Helgi to the valley, he would have attempted to reach it from the north.

In order that the position of this valley, and the course pursued by its explorers, may be understood, it will be necessary briefly to describe the glacier system in the midst of which it is situated.

Lang Jökull is an immense waste of snow-covered mountain, extending about forty-three miles from north-east to south-west, of breadth varying between eight and twelve miles. The mass rises into points of greater elevation along the edge than, apparently, towards the centre; and these mountains go by the names of Ball Jökull, Geitlands Jökull, Skjaldbreid Jökull, Blàfell Jökull, and Hrutafell. Skjaldbreid Jökull is opposite the volcanic dome of Skjaldbreid, an extinct volcano, with its base steeped in a sea of lava. Due east of Geitlands Jökull is another glacier-crowned dome, called Ok, from which it is cut off by a trench of desolate ruined rock filled with the rubbish brought down by the avalanches on either side—a rift between black walls of trap, crowned

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