


Panoramic overlook of Diablo Dam and the vivid turquoise waters of Diablo Lake framed by steep North Cascades peaks. Ideal for wide vistas, long exposures of spillways, and contrast between engineered concrete and wild alpine forest. Best at sunrise and early morning when low light and mist enhance color; late-afternoon light warms cliffs. Highway 20 viewpoint is a short walk from limited roadside parking — check seasonal closures of North Cascades Hwy (winter/spring). No entry fee; expect day‑h



Panoramic overlook of Diablo Dam and the vivid turquoise waters of Diablo Lake framed by steep North Cascades peaks. Ideal for wide vistas, long exposures of spillways, and contrast between engineered concrete and wild alpine forest. Best at sunrise and early morning when low light and mist enhance color; late-afternoon light warms cliffs. Highway 20 viewpoint is a short walk from limited roadside parking — check seasonal closures of North Cascades Hwy (winter/spring). No entry fee; expect day‑h