Walk down to the riverbank in Gao and the desert turns up in unexpected form: stacked among the vegetables and spices in the central market are great solid blocks of salt, hauled by caravan from mines in the far north of Mali. Salt was the currency that built this city more than a thousand years ago, when Gao was founded in the seventh century as a trading post on the Niger. It later became the dazzling heart of the Songhai Empire. For the traveler today, the salt blocks are a reminder that you have arrived somewhere genuinely far from anywhere else.
Gao sits roughly 1,200 kilometres from Bamako, and reaching it has never been simple. The city has an airport that in calmer years handled flights to other towns along the Niger and onward to France. The river itself is a road: seasonal ferries connect Gao to other Niger cities, including Timbuktu downstream, running when the water is high enough after the rains. Overland, a paved highway links Gao to Bamako, plied by buses two or three times a day, while other buses head southeast toward Niamey in Niger several times a week, though the final stretch of road to the border has long been unfinished. However you come, the journey is part of the experience.
Gao's markets are its living center, and the best are beside the river in the heart of town. The vegetable and meat markets carry the everyday business of Sahelian life, produce and spices traded the way they have been for centuries, and alongside them those distinctive salt slabs from the deep desert. Follow the road toward the Tomb of Askia and you reach the Marche Washington, where the trade turns to cloth: bolts of fabric, ready-made clothing, and tailors bent over their machines, stitching to order. There is also a night market for those who want to see the town after the worst of the day's heat has lifted.
Every visitor to Gao comes for the same monument. The Tomb of Askia rises at the end of the market road, a seventeen-metre pyramid of mud studded with the protruding wooden beams that masons use to climb and replaster it. Built around 1495 for the Songhai emperor Askia Muhammad I, it is a UNESCO World Heritage Site and the most important historic structure in the city, still serving as a working mosque. Its stepped, organic form is unlike anything in stone-building cultures, and seeing it in person, the human scale of its hand-shaped walls, is the reason the difficult trip to Gao has always rewarded those who make it.
Honesty matters more than romance here. Gao and the wider Gao region have endured years of armed conflict and insecurity, and conditions can change quickly. Any traveler should check current security guidance before even considering a visit, the kind of warning that sits at the top of any responsible guide to Mali. This is not a casual destination, and it has not been for a long time. But the city the salt caravans built endures, its markets still trading, its great mud monument still standing, waiting for the day when reaching it is once again a journey rather than a risk.
Gao lies at 16.27 N, 0.05 W on the Niger River in eastern Mali, the largest town in the region. The river, the Wabaria bridge, and the pyramidal Tomb of Askia are the standout visual landmarks from the air. Nearest airport is Gao International (GAGO). Visibility is best in the dry season, though Harmattan dust can reduce it between October and March.