The Boulder Hiker Chicks Winter Trifecta is an annual hike wherein we summit Boulder’s 3 highest peaks: Green (8,144 ft), Bear (8,461 ft), & South Boulder (8,549 ft). This is a very strenuous hike at approximately 11 miles and 4,500 feet of elevation gain. It is not appropriate for beginners. We hike at a moderate pace, averaging 30-minute miles. Plan on 6-8 hours of hiking depending on your individual pace and the length of your summit breaks.