Caldos
Caldos was an inhabited planet two hundred light years from Earth. The planet had a southern desert region and a northern coastal area.

Established sometime before 2242, the Federation Caldos colony was one of the first major terraforming projects. By 2370, some of the colony's weather controls and fusion systems were nearly a century old.

This colony, located in the northern hemisphere, was intended to evoke the Scottish Highlands. The Federation installed a weather control system for controlling the planet's weather, seismic stabilizers for stabilizing the planet's geology, so that the colony did not experience earthquakes, and fusion systems for powering the colony. The weather control system last experienced a power fluctuation in 2348, and had been operating perfectly since that year.

In 2370, Beverly Crusher, chief medical officer on board the , attended the funeral of her grandmother Felisa Howard at Caldos, where many of the inhabitants spoke the Scots language. ()

Ten years later, Ensign Bradward Boimler briefly described Dr. Crusher's experience on Caldos, which he referred to as "the Scottish planet". ()

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Colonies
Caldos