The Roman History · Amm. 15.10.1

This country then of the Gauls was by reason of its lofty mountain ranges perpetually covered with terrible snows, almost unknown to the inhabitants of the rest of the world, except where it borders on the ocean; vast fortresses raised by nature, in the place of art, surrounding it on all sides.

Ammianus Marcellinus · translated by C. D. Yonge · 1911 reprint
C. D. Yonge translation (preface dated February 1862); G. Bell and Sons, 1911; Project Gutenberg #28587
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