Where did Ansel Adams primarily take his famous photographs?

Ansel Adams is renowned for his stunning black-and-white landscape photography, which primarily features the grandeur of the American West. His work often highlights natural landmarks, particularly in national parks such as Yosemite, Grand Teton, and others in California and the surrounding areas. The dramatic vistas, intricate details of natural elements, and his mastery of light and shadow drew inspiration from the distinctive landscapes of the Western United States. This geographical focus not only defined his artistic vision but also helped to elevate the appreciation of wilderness conservation, aligning perfectly with his passion for nature and environmentalism. Thus, the Western United States is the correct answer, reflecting the heart of his photographic legacy.