A man dressed in a suit coat and hat, and wearing pants tucked into tall, laced boots, stands on the dirt road outside the Wellington Mine and Mill operations in French Gulch, east of Breckenridge, Colorado. Behind him is a large stack of lumber and finished mine timbers. Smoke fills the view in the background. Circa June 1913.

Two men outside a rustic log cabin in Illinois Gulch, east of Breckenridge, Colorado. One man fishes from a log bridge while the other man pans for gold near the cabin entrance. Smoke from the Colorado and Southern (C&S) railroad locomotive is visible on Rocky Point above. Circa early 1900s.

A man wearing a bowler (derby) hat stands on the dirt road outside the Wellington Mine and Mill operations in French Gulch, east of Breckenridge, Colorado. Behind him is a massive mine waste dump. In the background on the hillside are the Oro Shaft buildings. Circa June 1913.

Carl Fulton, holding two rock picks, and Charley Snyder, smoking a pipe, stand in front of a rough hewn log structure on Main Street, Swandyke, Colorado. The two-story log building (left) may be A.W. Coffin's Summit Hotel, later owned and managed by Fulton in 1902.

Core sampling in Summit Gulch prior to dredging the Swan River for gold. Circa 1895, near Breckenridge, Colorado. Two men operate the boiler while another man pans for gold in a wooden water flume. Piles of logs are stacked on the ground.

Handwritten on the reverse: "Y & M [Yingling and Mickles], Block 6, Lot 15A, Building 228, East face".

Handwritten on the reverse: "Y & M [Yingling and Mickles], Block 6, Lot 15A, Building 228, East face".

Mountain valley below Hoosier Pass, south of Breckenridge in the Rocky Mountains of central Colorado. In the foreground is a pile of weather beaten logs, probably the remains of an abandoned cabin. In the distance, sheep graze on the grassy mountain slope.

Mine workers sit or stand by a log stockpile for a group portrait at the Ouray Mine site in Illinois Gulch, east of Breckenridge, Colorado. Behind them is a wood frame building or sawmill. Handwritten on the reverse: "Ouray Mine, Breckenridge".

The Brooks-Snider Mill on the north side of Shock Hill west of Breckenridge, Colorado. Circa 1890s. Henry (Harry) and his wife Nellie Rogers stand near a small pond. Three men sit or stand nearby. One man is smoking a pipe. Huge piles of logs are stacked outside the extensive mill operations, and a small log cabin sits at the base of the hill.

Kingsbury (later called Banner) Placer hydraulic mining operations in Iowa Gulch near Breckenridge, Colorado. Circa early 1900s. On the bank above are wooden buildings and log cabins surrounded by piles of stacked logs. A buck and rail (or buck and pole) livestock fence climbs the hillside next to a split rail fence corral.

Men (and one dog) stand side-by-side outside the Minnie Mine and Mill mill building on Mineral Hill in French Gulch, east of Breckenridge, Colorado. The wood frame, metal-roofed mill was constructed in 1892 and included several crushers, crushing rolls, screens and jigs. Smoke rises from one of the chimneys. Peeled, cut logs are stacked near the mill's entrance. The Minnie Mine and Mill was owned by the Blue Hill Mining Company from 1890-1904.

Mine waste dumps or mine tailings at the Wellington Mine in French Gulch east of Breckenridge, Colorado. In the background is a view of the snow-covered peaks of the Tenmile Range.

A well-dressed man, woman, and boy stand on lumber scattered on the side of the Swan River, overlooking Bucyrus No. 4 dredge. Behind the boy is a large stack of wood for the dredge's boiler. Excavated rocks and boulders line the opposite side of the river, following the dredging route. In the background are tree-covered hills. Circa early 1900s.

Remains of a log cabin or log structure, near Breckenridge, Colorado.

Remains of a log cabin or log structure, near Breckenridge, Colorado.

Remains of the ore bin at the Sallie Barber Mine site located in French Gulch on Barney Ford Hill, east of Breckenridge, Colorado. Scattered among the site are logs, rusted sheet metal and abandoned mining equipment.

Sallie Barber Mine site located on Barney Ford Hill in French Gulch, east of Breckenridge, Colorado. In the foreground are roughly stacked logs.

Sawmill operations at the Extenuate (X10U8) Tunnel of the Wellington Mine in French Gulch east of Breckenridge, Colorado. Piles of logs and finished mine timbers are stacked throughout the property. Circa 1900s.

Handwritten on reverse: "Abbett's, Block 6, Lots 13-14, Outbuilding 181".