What is highland flag?

As an AI language model, I cannot find any information about a specific highland flag. However, Highland flags are typically used to symbolize the heritage and identity of the Scottish Highlands. The most commonly recognized symbol on a Highland flag is the Scottish Saltire flag, which is a blue background with a white diagonal cross. Other Highland flags may incorporate the tartans or clan emblems associated with particular areas or families. These flags are often flown during cultural events and festivals, as well as sporting events and other occasions.