The Devonian dolomites, limestones and red sandstones cover immense tracts and appear on the surface over a much wider area.
It is traversed from west to east by the main chain of the Alps, which rises in various snow-covered summits, the more important being the Ortler (12,802 ft., the loftiest peak in Tirol and in the Eastern Alps generally), the Wildspitze (12,382 ft., Oetzthal group), the Zuckerhiitl (11,520 ft., Stubai group), the Hochfeiler (11, 559 ft., Zillerthal group), the Gross Venediger (12,008 ft.) and the Gross Glockner (12,461 ft., both in the Tauern range), while more to the south are the Dolomites, which culminate in the Marmolata (10,972 ft.).
The value of the product of limestones and dolomites in 1900 was $124,728; in 1902, $228,662; of sandstones and quartzites in 1900, $37,038; in 1902, $165,565; while the value of all stone produced in 1907 was $497,962, and in 1908, $ 6 59,574.
The total value of all mineral products in 1902 was $6,769,104, of which $6,464,258 were represented by gold and silver, $110,789 by sandstones and quartzites and $86,605 by limestones and dolomites; in 1908 the total value was $8,528,234, which was an i increase of more than $3,500,000 over the value in 1907.
Rhaetic beds (Infra Lias), consisting of dolomites and siliceous limestones, have been recognized at Saida.
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