The hills and mountains ranges of Newfoundland are an extension of the
Appalachian Mountains, a chain of eroded mountains that extend about 1,500 miles in length, from central Alabama in the U.S., through Canada's maritime provinces.
The eroded
Long Range Mountains average nearly 670 m (2,200 ft.) in elevation. They dominate the island of Newfoundland, a stunning landmass indented by hundreds of bays, coves, islands and small inlets.
Newfoundland is covered by innumerable lakes and drained by over fifty rivers. The most significant lakes include the
Grand, Meelpaeg and Red Indian. Labrador, bordering the province of Quebec, is the easternmost part of the
Canadian Shield. In the central and southern plateau areas the land is hilly, irregular and rough, and blanketed by many lakes and rivers.
When it comes to the
weather in Newfoundland and Labrador, you'll never be stuck for conversation; folks here love to talk about it. And as unpredictable as the weather is, the clean, fresh sea air is a welcome constant.
Thanks to the temperate marine climate, you won't have to contend with extreme temperatures. The island of Newfoundland has an average summer temperature of 16°C (61°F), while the winter hovers around 0°C (32°F). In Labrador, the winter climate is somewhat harsher, but temperatures can top 25°C (77°F) during the short but pleasant summers.
Source:
https://www.newfoundlandlabrador.com/about-this-place/climate-and-weather
https://www.worldatlas.com/webimage/countrys/namerica/province/nfzland.htm