The east end of bendy Hwy 103 begins at Bergen Park near Interstate 70, but the majority of people start at the west end, in Idaho Springs
also on I-70, where the route is signposted to Mount Evans. The first few miles run along the nearly flat floor of the valley of Chicago Creek
, followed by a steep climb into the wooded mountains, gaining nearly 2,000 feet to a junction at 10,650 feet beside Echo Lake
(and close to a campground), where the summit road forks off southwards.
Road to Summit Lake
The scenic drive is winding at first, climbing from the entrance station (fees $10 in 2015) through the upper reaches of the forest and above the treeline to Mount Goliath Natural Area
, a small protected region that contains ancient bristlecone pine trees as well as many flower species. A short trail crosses the hills. Goliath Peak rises above, at the north end of a ridge that extends south to Mount Evans and includes three other summits (Rogers Peak, Mount Warren, Mount Spalding). Beyond here, the road is relatively straight, crossing tundra and rocky hillsides, with a big drop-off to the east. There is no fence, and the land in many places falls away right at the edge of the tarmac. The road stays on the east side of the ridge, reaching a parking area after 9 miles beside Summit Lake
(12,830 feet), where another short path leads to the shore. The surrounding boggy flats are underlain by an area of permafrost, believed to be the southernmost occurrence of this in the US. These moist conditions are ideal for many species of Alpine plants such as king's crown
, queen's crown
, alpine clover
, American bistort
and elephant heads
. The lake sits in a deep, glacial cirque, enclosed by curving, rocky slopes on three sides, with Mount Evans due south and Mount Spalding to the west.