Historical Marker Search

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historicalmarkerproject/markers/HM24IO_oneonta-tunnel_Cascade-Locks-OR.html
The US Department of Agriculture describes cedar as possessing a natural resistance to rot... It is well recognized for its longevity and strength above other wood products. Oneonta Bluff presented an obstacle to engineer Samuel C. Lancaste…
historicalmarkerproject/markers/HM24IN_oneonta-gorge_Cascade-Locks-OR.html
Using the sun's energy, the chlorophyll in a plant's leaves produce sugars and starches that nourish the plant. Shafts of light dance briefly through this deep canyon, illuminating shade-tolerant ferns, mosses, and lichens showering in the r…
historicalmarkerproject/markers/HM24IK_the-bridge-of-the-gods_Cascade-Locks-OR.html
Although steel has been made for centuries, it wasn't until the Bessemer process was introduced in the 1870s that it could be produced in quantity. The Bridge of the Gods mural is the creation of Larry Kangas, of Beaverton, Oregon. Commiss…
historicalmarkerproject/markers/HM1QXC_this-old-turbine_Cascade-Locks-OR.html
For nearly 60 years this turbine helped make power at Bonneville Dam. Throughout these years it has meant different things to different people at different times. During installation, it meant jobs to help people recover from the Great Depression.…
historicalmarkerproject/markers/HM1QXB_bradford-island-fishway_Cascade-Locks-OR.html
Migrating fish are attracted to large flows of water coming from the Bonneville Dam. To take advantage of this natural reaction, fish-collection facilities are placed along the face of the powerhouse and at each end of the spillway dam. These coll…
historicalmarkerproject/markers/HM1QXA_sturgeon-habitat_Cascade-Locks-OR.html
Sturgeon range throughout the Columbia River system, however the construction of Bonneville Dam and the other dams upstream blocked sturgeon migration. Sturgeon, unlike salmon, do not use fish ladders. Sturgeon below Bonneville Dam travel up and d…
historicalmarkerproject/markers/HMN5R_beacon-rock_Cascade-Locks-OR.html
The prominent monolith across the river was named Beacon Rock by Lewis and Clark, November 2, 1805. It marked the beginning of tidewater for early river explorers who used it for a landmark in their journeys. The Indians say that when the Chinook …
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