• Where and when: Gallery Roach, 860 Broadway; through October

• What you'll see: People here now flock to farmers' markets, those sporadic gathering of farmers and small-scale food operations with fresh and exotic wares to sell.

But Denver used to be home to full- time markets, two of which opened in 1939. The Wazee Market was in the Auraria area and the Denargo Market was toward the top of the Central Platte Valley, conveniently located near the rail lines of Union Station. The Wazee Market is long gone - as is the concept of Auraria as a neighborhood - but a bit of Denargo still hangs on as it awaits impending development.

The exhibition now on view at Gallery Roach offers an opportunity to see both of them in full flower, from construction to their role as purveyors of produce and other key goods to all segments of Denver society.

As expected, the staff at Roach Photo has taken advantage of its huge archive of historic work. Highlights include aerials that place the markets in context and show long-gone structures (such as Denver's first City Hall), as well as a gritty four-corner view of 15th and Larimer streets from decades before it was an upscale shopping mecca.

• Information: 303-839-5202