Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps)

Geomorphology of the Hérens valley (Swiss Alps)

This paper presents a geomorphological map of the Hérens valley in the Western Swiss Alps. With an area of 270 km and altitudes ranging from 470 to 4357 m a.s.l., this valley is one of the main secondary catchments of the Upper Rhône valley. The high differences in altitudes, combined with a varied geology, create an important geomorphic diversity. The main processes active in mountain areas, t...

Geology and Ground Water Resources of the Matanuska Valley Agricultural Area, Alaska.

This report describes the geology and ground-water resources of an area of present and potential agricultural development in south-central Alaska. The Matanuska Valley agricultural area, which covers about 350 square miles, is in a wide valley flanked by rugged mountains. The valley floor is underlain nearly everywhere by glacial drift whose total thickness is known at relatively few places. Be...

Present-day uplift of the western Alps

Collisional mountain belts grow as a consequence of continental plate convergence and eventually disappear under the combined effects of gravitational collapse and erosion. Using a decade of GPS data, we show that the western Alps are currently characterized by zero horizontal velocity boundary conditions, offering the opportunity to investigate orogen evolution at the time of cessation of plat...

Surficial Geology of the Swan River Area

Geology of the Tagish Lake Area

ACCESS AND PHY SIOGRAPIHY Large lakes at elevations ranging from 656 to 844 re t res provide boat access to about 30 per cent of the map area. These lakes are most easily reached by floatplane or hslicopter, both stationed in Atlin some 40 kilometres to the east. During high water (earl) July through to late Septenber) Tagish Lake can also he reached from Atlin by powerbolt via the Atlin River....