The higher region of the Alps were long left to the exclusive attention of the inhabitants of the adjoining valleys, even when Alpine travellers (as distinguished from Alpine climbers) began to visit these valleys. It is reckoned that about 20 glacier passes were certainly known before 1600, about 25 more before 1700, and yet another 20 before 1800; but though the attempt of P.A.
| Attributes | Values |
|---|---|
| rdfs:comment |
|
| is rdfs:seeAlso of |