The 1823 Excise Act transformed the whisky industry by making it economically viable to hold a legal license. Before the Act, punitive taxation had driven distilling underground across the Highlands, creating an industry of small illicit stills hidden in glens and bothies. The Duke of Gordon was allegedly instrumental in the Act's passage, and his tenant George Smith was running an illegal still on his Upper Drummin farm when the legislation came into effect. Smith's application for a license was a calculated gamble: he would trade the freedom of illegality for the security of law. His neighbours saw it differently. The threats were serious enough that Smith carried his pistols for years.

Smith established a second distillery in 1849, the Cairngorm-Delnabo Distillery, but by 1855 both operations were running at full capacity and still could not meet demand. The name 'Glenlivet' had become so synonymous with quality that other distillers began appending it to their own names -- Macallan-Glenlivet, Aberlour-Glenlivet -- as a geographic marker of prestige. In 1880, Smith's son John Gordon Smith took legal action to establish The Glenlivet as the sole legitimate use of the name, a distinction the distillery has defended ever since. The distillery merged with Glen Grant in 1953, then with Hill Thomson and Longmorn-Glenlivet in 1970, before the company became Glenlivet Distillers Ltd in 1972. Today it is owned by Pernod Ricard through its Chivas Brothers subsidiary.

The Glenlivet survived the Great Depression without closing. Its only shutdown came during World War II. The post-war decades saw dramatic expansion: new stills, new washbacks, a mash tun installation in 2008 that cost fifteen million dollars, and a further expansion opened by the Prince of Wales in 2010 that increased capacity by seventy-five percent. The distillery now operates seven wash stills with a capacity of 15,000 litres each and seven spirit stills at 10,000 litres each. Annual production reaches 5.9 million proof litres -- enough for six million bottles. The Glenlivet is the best-selling single malt in the United States and the second-best-selling globally, behind only Glenfiddich. The majority goes out as single malt, with the remainder used in Pernod Ricard's blended whiskies including Chivas Regal.

In May 2021, barley seeds from The Glenlivet were sent to the International Space Station aboard a SpaceX rocket to test the effects of microgravity on germination. The seeds were to be returned, planted, harvested, and distilled into a single malt that had, in some molecular sense, been to space. Whether George Smith would have approved of this marketing exercise is unknowable, but the gesture captures something essential about The Glenlivet: a distillery that began as one man's defiance of his neighbours has spent two centuries finding new ways to draw attention to itself. The pistols Smith carried are no longer needed. The whisky does the talking. Standing at the distillery near Ballindalloch, with the River Livet running through the glen and the Cairngorm foothills rising to the south, the location still feels remote enough to hide a still -- which is precisely why George Smith put one here in the first place.