The Allt a'Ghlinne Bhig is a picturesque river flowing through the rugged landscape of the Scottish Highlands, near Balmoral Castle. The river's name, translating from Gaelic as "Stream of the Little Glen," aptly describes its journey through Glen Lui, a smaller valley nestled within the grander expanse of the Highlands. This region, known for its steep, heather-covered hillsides, dense woodlands, and rolling moorlands, is a haven for wildlife, including deer, red squirrels, and a variety of bird species. The terrain is typical of the Highlands, characterized by its dramatic hills and mountains, often shrouded in mist, contributing to the area's raw, untamed beauty.

The climate here is typically Scottish, with cool, wet conditions prevailing year-round. Summers are mild, and winters can be harsh, with frequent snowfall. The high rainfall supports the lush vegetation and flowing streams that define the landscape, adding to the region's atmospheric appeal. The old military road that runs alongside the Allt a'Ghlinne Bhig was originally constructed in the 18th century as part of a network of roads built by the British government to control the Highlands during the Jacobite uprisings. This historic route remains the only direct road from Edinburgh to Balmoral Castle, winding through remote areas that showcase the Highlands' wild beauty.

Historically, the area around Allt a'Ghlinne Bhig and Glen Lui was inhabited by Pictish tribes, known for their distinct culture and craftsmanship. These early inhabitants were the dominant force until the early medieval period when the Kingdom of Scotland began to take shape. Before Scotland became part of the United Kingdom, the region was ruled by local Scottish clans, such as the powerful Clan Gordon or Clan Farquharson, who controlled much of Aberdeenshire and the surrounding areas. These clans played crucial roles in Scottish history, particularly during the Jacobite uprisings of the 17th and 18th centuries, as they fought to preserve Scottish independence against English rule.

The old military road, built by the British government to assert control over these Highland areas, marks a significant shift in power. The road and the entire region became increasingly integrated into the British kingdom following the Jacobite defeat at the Battle of Culloden in 1746. Today, this historic route to Balmoral Castle not only offers breathtaking views but also stands as a testament to Scotland's rich history and the enduring legacy of the clans who once ruled these lands.

This combination of natural beauty, historical significance, and challenging terrain makes the area along the Allt a'Ghlinne Bhig and the old military road a fascinating part of Scotland’s landscape, offering both a glimpse into the country’s past and an experience of its wild, unspoiled nature.