Builder photo of Construction Number 1178 showing right side of Pittsburg Iron Ore Company 60 Ton Two Truck Heisler Geared Steam Locomotive Number 3 at Erie, Pennsylvania in December 1909. This locomotive was used in mining iron ore at Mountain Iron, Minnesota. Photograph by Schauble.

Builder photo of Construction Number 1426 showing right side of Poinsett lumber and Manufacturing Company 47 Ton, Two Truck Heisler Geared Steam Locomotive Number 6 at Erie, Pennsylvania, February 1920. This locomotive was used for logging near Trumann, Arkansas. Photograph by Schauble.

Former Northern Pacific steam locomotive 3100 is in the Polson Logging Company shops at Railroad Camp, Washington, for repairs, circa 1940. Number 3100 was a class Z-1 built by Baldwin in 1910. J.M. Fredrickson collection. Other Subject Classes: steam locomotive, roster photo

Polson Logging Company steam locomotive 51, at Railroad Camp, Washington, circa 1948. Polson number 51, formerly Northern Pacific number 51, class F-1, 2-8-0, built by Baldwin in 1889. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Polson Logging Company steam locomotive 51, at Railroad Camp, Washington, circa 1948. Polson number 51, formerly Northern Pacific number 51, class F-1, 2-8-0, built by Baldwin in 1889. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Polson Logging Company steam locomotive 51, at Railroad Camp, Washington, circa 1948. Polson number 51, formerly Northern Pacific number 51, class F-1, 2-8-0, built by Baldwin in 1889. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, roster shot

Polson Logging Company Baldwin 4-6-0 steam locomotive number 18 parked at Railroad Camp, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, logging locomotive.

Polson Logging Company two-truck Shay steam locomotive number 3 parked at Railroad Camp, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, logging locomotive.

Polson Logging Company two-truck Shay steam locomotive number 33 parked at Railroad Camp, Washington, circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: steam locomotive, logging locomotive.