Yes, Turkeys Laguna Basalt can be used in exterior applications in cold climates. Basalt is a durable and dense natural stone that can withstand freezing temperatures without cracking or deteriorating. It has a low water absorption rate and is resistant to thermal expansion and contraction, making it suitable for outdoor use in cold climates where temperature fluctuations are common. However, it is always recommended to consult with a professional stone supplier or installer to ensure proper installation techniques are followed for the specific climate conditions.