Crystal Clear Waters at Redfish Lake, Idaho

Redfish Lake, located in the scenic Sawtooth Valley near Stanley, Idaho, is a striking alpine lake framed by towering Sawtooth Mountain peaks. This glacially-carved lake stretches nearly five miles in length and plunges almost 400 feet deep at its southern end, making it one of the largest mountain lakes in the region. Its clear, cool waters, maintained by a gravel bottom, offer unbeatable visibility that has attracted scuba divers looking to train amid unique underwater features.

Redfish Lake earned its name from the once-abundant sockeye salmon that turned the waters a deep red during the spawning season. Though these fish are no longer plentiful, the lake’s natural beauty remains unchanged. The jagged mountain ridges reflect vividly on the lake’s surface, creating mesmerizing mirrored views. Dense pine forests and wildflower meadows surround the shoreline, providing a peaceful backdrop for visitors.

The lake features two popular dive sites: Schoolhouse Rock, a massive underwater rock structure rising to within 20 feet of the surface, and a rare underwater forest where landslide-uprooted trees lie inverted at an 80-foot depth, clearly visible thanks to the lake’s clarity. Redfish Lake’s cool water temperature, averaging about 64 degrees Fahrenheit in summer, invites refreshing swims on warm days, especially at the sandy main beach that draws families and paddleboarders alike.

This destination offers a blend of tranquility and activity in Idaho’s rugged wilderness, attracting visitors for camping, hiking, boating, horseback riding, and fishing. Despite its popularity and occasional crowds, Redfish Lake remains a remarkable spot for nature lovers and outdoor enthusiasts seeking fresh mountain air and stunning alpine scenery.

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