In the year 1025 Grettir was in such danger that he was obliged to seek out some unknown place in which to hide. In the words of the Saga:—About autumn Grettir went up into Geitland, and waited there till the weather was clear; then he ascended the Geitland glacier and struck south-east over the ice, carrying with him a kettle and some firewood. It is supposed that Hallmund (another outlaw) had given him directions, for Hallmund knew much about this part of the country. Grettir walked on till he found a dale lying among the snow-ranges, very long, and rather narrow, and shut in by glacier mountains on all sides, so that they towered over the dale.

He descended at a place where there were pleasant grassy slopes and shrubs. There were warm springs there, and he supposed that the volcanic heat prevented the valley from being closed in with glaciers.

A little river flowed through the dale, and on both banks there was smooth grassy meadow-land. The sunshine did not last long in the valley. It was full of sheep without number, and they looked in better condition and fatter than any he had seen before. Grettir now set to work, and built himself a hut with such wood as he could procure. He ate of the sheep, and found that one of these was better than two of such as were to be found elsewhere.

An ewe of mottled fleece was there with her lamb, the size of which surprised him. He fattened the lamb and slaughtered it, and it yielded forty pounds of meat, the best he had tasted. And when the ewe missed her lamb, she went up every night to Grettir’s hut and bleated, so that he could get no sleep. And it distressed Grettir that he had killed her lamb, because she troubled him so much. Every evening, towards dusk, he heard a lure up in the dale, and at the sound all the sheep hurried away towards the same spot. Grettir used to declare that a Blending,[19] a Thurse named Thorir, possessed the dale, and that it was with his consent that Grettir lived there. Grettir called the dale after him, Thorir’s dale. Thorir had two daughters, according to his report, and Grettir entertained himself with their society: they were all glad of his company, as visitors were scarce there. When Lent came on, Grettir determined to eat mutton-fat and liver during the long fast. There happened nothing deserving of record during the winter. But the place was so dull that Grettir could endure it no longer; so he went south over the glacier range, and came north over against the midst of Skjaldbreid. There he set up a flat stone, and knocked a hole through it, and was wont to say, that “if any one looked through the hole in the slab, he would be able to distinguish the place where the gill ran out of Thorir’s dale.”

It is surprising that this account should not have stirred up the interest and curiosity of the natives to rediscover the rich valley, but we know of only two such attempts having been made: one by Messrs. Olafsen and Povelsen, at the close of last century, which was unsuccessful, and another, made in 1654, by Björn and Helgi, two Icelandic clergymen, an account of which is found among the Icelandic MSS. in the British Museum, and which has been kindly communicated to the writer of this paper by a native of the island, now in London. This account is of exceeding interest; it corroborates the description in 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 with green precipices of ice, which are constantly sliding over the rocky edges and falling with a crash into the valley: this valley is called Kaldidalr, or the cold dale—a title it well deserves. Those who traverse it from the south encamp at a little patch of turf around some springs, at the foot of Skjaldbreid, Brunnir by name, and thence have twelve hours’ hard riding before they see grass again on the Hvitá, north of Ok. Half-way through this Allée Blanche is a mountain of trachyte, which has been protruded through the trap, from which it is clearly distinguishable by its silvery gray and ruddy streaked precipices, so different in colour from the purple-black of the trap.

This mountain is called Thorir’s Head, and is popularly supposed to mask the dale discovered by Grettir.

The elaborate map of Iceland published by Gunnlaugson indicates the valley as winding from opposite Skjaldbreid to this point, but this is conjectural; and it will be seen by the sequel that it is inaccurate.