Sarah Hall Ladd joined the Oregon Camera Club in September 1899, and, by early 1901, a number of her works were on exhibition in San Francisco. Charles was the son of leading Portland businessman William S. Ladd (formerly Hall) was born in Somerville, Mass., in 1857, and came to Portland with her new husband Charles Ladd in 1881. Sarah Hall Ladd, a pioneering amateur photographer, was important to the early photographic movement in Portland in the first decades of the twentieth century. Eventually, the dam broke, the waters receded, and the silt gradually eroded, exposing the dead, yet preserved, tree stumps and trunks. This dam stopped the river’s flow and submerged the still-living trees under water and tons of accumulated silt. The earthquake caused a landslide that created a large earthen dam in the river. Modern scientists theorize that the trees may have been submerged as the result of a strong regional earthquake in about 1700, possibly the same earthquake that caused a tsunami that ravaged the Northwest coast that same year. In an April 14, 1806, entry, Lewis observed “the trunks of many large pine trees sanding erect as they grew at present in 30 feet water they are much doated and none of them vegetating.” Subsequent travelers, explorers, and scientists, including the Wilkes Expedition in 1841, also tried to make sense of the odd formation. They made note in their journals on their way down the Columbia in October 1805 and again on their return trip. Lewis and Clark were the first Euroamericans to record this phenomenon. Most of this area is now submerged behind Bonneville Dam. The remains of trees in the river are found 25 miles above Cascade Rapids. Sarah Hall Ladd took this photograph of the “submerged forest” on the Columbia River circa 1902-1904.
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