Mount Sopris dominates the lower (northwest) end of the valley and serves as an unofficial symbol of the region.
[citation needed] The main economic engine of the valley is the Aspen/Snowmass recreational skiing complex which directly or indirectly drives the related tourism, hospitality, retail, construction, real estate, professional service and property maintenance industries.
Non-winter recreational and cultural activities such as fly fishing on the Fryingpan and whitewater rafting on the Roaring Fork, hiking near the Maroon Bells in the Maroon Bells–Snowmass Wilderness, enjoying the caverns and hot springs in Glenwood Springs, the Aspen Institute and Rocky Mountain Institute conferences, the Aspen Music Festival, and other cultural events attract visitors year-round.
Although the valley floor is largely privately owned, most of the surrounding highlands are within the White River National Forest and are another source of recreation and tourism.
[citation needed] The communities of Basalt and Carbondale have served as bedroom communities for day workers in Aspen, where high property values have increasingly strained the ability of low and middle-income workers to afford the cost of living, though the affluence that marks the Upper Roaring Fork Valley is gradually leaking into the rest of the Valley.
Many employees in Glenwood Springs live further down the Colorado river due to the same acute lack of affordable housing.