Negative of a photographic postcard showing a bridge over the Umpqua River in Roseburg, Oregon. Taken from the shore of the Umpqua River. Handwriting on negative reads, "South Umpqua Bridge - Roseburg, Ore. Christian S-400."

Negative of a photographic postcard showing crowds of people fishing on both banks of the Sandy River in Troutdale, Oregon. Many of them hold fishing nets. One man stands in knee-high water with his net in the foreground. On a bridge above the river, people are lined up, looking at the scene below. Handwriting on negative reads, "Smelt fishing - Sandy River, Ore. Christian 11-687."

Negative of a photographic postcard showing the Historic Columbia River Highway at Shepperd's Dell, a canyon in the Columbia River Gorge. A bridge crosses the canyon. Handwritten labels on negative read, "Shepperd's Dell. Columbia River Highway. Christian 11-677."

Negative of a photographic postcard showing a view up a highway. There is a bridge on the highway and an automobile approaches in the distance. Handwriting on negative reads, "McKenzie Bridge, Oregon. Christian S-267."

Negative of a photographic postcard showing a highway bridge over a river. Taken from the shore of the river. Handwritten note on envelope reads, "McKenzie Bridge - McKenzie Highway, Oregon (Christian)"

Negative of a photographic postcard showing a bridge over an irrigation canal, with a view of snow-capped Mount Jefferson in the distance. Likely taken near Madras Oregon along The Dalles - California Highway (today known as Highway 97). Handwriting on negative reads, "Irrigation Canal - The Dalles-Calif. Hwy. Christian S-306."

Negative of a composite photograph showing the Hood River Bridge over the Columbia River in the Columbia River Gorge. Looking south from White Salmon, Washington towards Hood River, Oregon. Snow-capped Mount Hood is in the background. The clouds in the sky were added from a different photograph. Handwriting on negative reads, "Interstate Bridge. Hood River, Ore. to White Salmon, Wn. Christian 11-754." Negative is discolored.

Negative of a photographic postcard showing the Hellgate Bridge over the Rogue River in Oregon. Taken from the shore of the river. Handwriting on negative reads, "Hells Gate Bridge - Rogue River, Ore. Christian P-268."

Negative of a photographic postcard showing a bridge over the Rogue River. Handwriting on negative reads, "Grave Creek Bridge - Rogue River, Ore. Christian P-283."

Negative of a photographic postcard showing the Eagle Creek Bridge, a stone bridge over Eagle Creek in the Columbia River Gorge. The bridge is a part of the Historic Columbia River Highway in Oregon. Handwriting on negative reads, "Eagle Creek Bridge. Columbia River Highway. Christian 11-794."

Negative of a photographic postcard showing an aerial view of the Crooked River Gorge in Oregon. Two bridges cross the gorge, including the Crooked River High Bridge. Handwriting on negative reads, "Crooked River Gorge - The Dalles-Calif. Hwy. Christian S-478."

Negative of a photographic postcard showing the Crooked River High Bridge spanning the Crooked River Gorge. The Crooked River flows through the bottom of the gorge. Handwriting on negative reads, "Crooked River Bridge - Oregon. Christian S-273."

Negative of a photographic postcard showing the Estacada Bridge over the Clackamas River in Estacada, Oregon. There are trees on both banks of the river. Handwriting on negative reads, "Clackamas River and Bridge - Estacada, Ore. Christian 11-6006."

Negative of a photographic postcard showing the Bridge of the Gods in Cascade Locks, Oregon. Taken from the bridge, an automobile drives toward the camera. A sign on the bridge reads, "Bridge of the Gods." Handwriting on negative reads, "Cascade Locks, Oregon. Christian 11-838."

Negative of a photographic postcard showing a wooden footbridge over the Breitenbush River in Humbug Mountain State Park. Handwriting on negative reads, "Breitenbush River - Humbug Park, Oregon. Christian S-111."

Negative of a photographic postcard showing a bridge crossing a river. Taken from the shore of the river and looking upstream toward the bridge. Handwriting on negative reads, "Blue River - McKenzie River Highway, Oregon."