The name may have come from the early pioneers hearing the sound of dry seed pods rattling in the wind. Hiking the entire length of this trail from the west to the east trailheads is a classic close-to-Seattle adventure.Ī note to the concerned: there are no rattlesnakes on Rattlesnake Mountain, or anyplace else west of the Cascade Mountains for that matter. This trail touches on a number of spectacular vista points, including the Grand Prospect vista point about four miles from the north trailhead at Snoqualmie Point Park, and the Rattlesnake Ledges at the east end of the mountain. A long and scenic 11 mile trail traverses the entire length of Rattlesnake Mountain. Snowshoes can be useful for travel on the East Peak in winter. Rising to 3500', the East Peak is tall enough to get heavy snow in winter, far more than any other summit in the Issaquah Alps. Rattlesnake Mountain, a long, steep-sided ridge that looms to the south of the city of North Bend, is the highest summit of the Issaquah Alps.