A mountainous sub-region within the Central Washington Cascades, bounded by Tye River (US-2), Stevens Pass, Nason Creek (US-2), Whitepine Creek, Wildhorse Creek, Frosty Pass, Frosty Creek, upper Icicle Creek, Jack Creek, Meadow Creek, French Potholes, Deception Pass, and Deception Creek. Notable landforms include Thunder Mountain, Jim Hill Mountain, Granite Mountain, The Bulls Tooth, French Ridge, The Cradle, and Highchair Mountain.
Nimbus Peak + Thunder Mtn Lakes + Trap Pass Trail Traverse (Upper Icicle Mountains, WA)
Trip Date: August 12, 2001 Nimbus Peak Day Climb & Trap Pass Trail Traverse: Surprise Creek to Tunnel Creek
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