There is one interesting and difficult climb. A lake—Glencullin ('Glen of Hollies') Lake—lies immediately north of Doo Lough. A stream runs into the south-west corner of this lake out of Glencullin, starting from a series of black, sunless precipices, seamed with gorges and well-nigh 2,000 ft. high. These can be climbed by two gorges at least from base to summit. The name of these cliffs is Asko Keeran ('Ridge of Mountain Ash'), and when the crest is gained a fine walk is the reward, over Ben Bury (2,610 ft.) to the highest point, Mweelrea (2,688 ft.), along a curved ridge one to two miles long.
One portion of the Mweelrea system—that which lies immediately east of Fin Lough or Delphi—is known as Ben Gorm, or Kead-na-binnian. The cliffs upon this mountain are formed chiefly of gneiss, which breaks up into blocks, owing to numerous transverse fissures across the lamination. These blocks lie on one another, often on a steep slope, owing to the roughness of their surfaces, which prevents their sliding. They are then more dangerous even than slaty rocks, since this very roughness beguiles a climber into feeling that the footing is safe at a steeper angle than on the smoother surfaces, while the rocks are merely in unstable equilibrium.
Maamtrasna, Slieve Partry, the Formnamore Mountains, or Letterbrickaun ('Wet Hill of Badgers'), abut upon the head of Killary Fiord. The highest points, or rather flats, are Devils Mother (2,131 ft.), Maamtrasna (Formnamore) (2,239 and 2,209 ft.) They are chiefly composed of sandstone and sandstone conglomerate, and form a series of high barren tablelands, dotted with pools, and of no interest whatever.
The above group, as well as Mweelrea, is within easy reach of the excellent Leenane Inn at Killary.
Cliffs.—Of the numerous magnificent cliffs on the western seaboard of Ireland none, in the writer's opinion, excel those of North Mayo. Certain aspects of Slieve League are grander, the cliffs of Moher are more splendidly symmetrical, Horn Head, Dunaff Head, Achill, all have their glories, but the Mayo cliffs are unmatched for extent and variety. From Ballina by Ballycastle to Belmullet, round the coast, is the finest sea-cliff walk the writer has ever experienced. For three days there was no cessation of variety in shape, in sculpture, in colouring of the precipices, always lofty and always plunging into a surf-like snow beneath, fringing the blue ocean outside. Occasionally, but rarely, ravines occur, leading to some tiny rock-bound bay. The coast here for many miles is higher than the land inside, and the streams flow away from the sea to the south, and then west to the Atlantic. Perhaps the most hopeless area of undrainable bog in Ireland lies in Western and North-Western Mayo.
Although it was impossible to omit mention of these cliffs, they are not for the climber. They are too sheer, and, what is worse, there is no accommodation. From Ballycastle west to Belderg is within reach. But it is west of Belderg that the cliffs are grandest, as at Glinsk, Doonmara, and Benwee Head. Without the happy fortune which enabled the writer to use a shooting lodge, located west of Belderg, the distances would have been impossible without camping out.
From Belderg to Belmullet the rock is chiefly a hard and reliable quartzite, often seamed with dykes of basalt. Numerous needle-shaped islets, stacks, and stookawns occur. The whole coast abounds with sea fowl, and is singularly free from human influence, since the absence of bays, strands, or harbours renders long stretches of it uninhabitable even for fishermen.
Otway's Sketches in Erris and Tyrawley (1841) should be read.
Galway Mountains.—The Galway Mountains, besides the Maamtrasna range, spoken of above, are Maamturk range, Benchoona, Bennabeola or Twelve Bens (or 'Pins').