Yes, remote is a huge variable and relative to the availability of transportation. That road you drove to get in there makes it remote, but the same distance on M-1 would be a snap. Your home isn't so much remote as time consuming to reach, mainly because of having to cross water.
The clearances moved all the natives out of huge swaths of land to replace them with huge flocks of sheep. But what was done other than moving people and their possessions? Were there forests to cut, or other land altering changes? Now mid 19th century saw large sheep flocks, but the native highlanders had been living there for centuries, and they had to eat. The barren terrain looks like subsistence hunting would be difficult, with minimal success. Bringing home a stag now and then can't be compared with having a butcher shop down the road. So I imagined they farmed some food, and raised highland cattle, horses, chickens, and for those long winter nights, sheep.
Is this picture, strictly from my imagination, wrong? Again.