@maggiemae Our mountains are not very high - this one is 1,296 metres. But here, we are already standing at about 600m above sea level. They have their own complications, however, bad weather and an often featureless terrain being two of the winter dangers. The weather was not a problem today though!
@milaniet Always have a map and compass, and always know where you are. The Cairngorms can be dangerous, especially in winter as they can be featureless and the weather can change very quickly. However, no risks today, as visibility was perfect and we had researched our route well in advance.
@lesip We walk all sorts of distances, but this was a fairly long one - 35 km, and 10 km cycling into our start point. In summer we don't carry a lot in the backpack, but always a hat, gloves, and neck warmer and spare socks, a survival blanket, first aid kit, food, drink, compass, map and even an emergency bivouac 'tent' in case of accident. In winter a lot more extra clothes and often crampons and ice-axe.
@jamibann Well, that would be the Rockies but believe it or not, the Green Mountains of Vermont are older but less imposing at 6 to 7,000 feet and the Pocono Mountains in my area look tall but they're less than half the size of the Green Mountains. It's all relative I guess!