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The San Mateo County Historical Association
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The mission of the San Mateo County Historical Association is to inspire wonder and discovery
of the cultural and natural history of San Mateo County.

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  1. Building of the Crystal Springs Dam, c. 1887-1888 - Print, Photographic

    Building of the Crystal Springs Dam, c. 1887-1888. The photo, taken from the lake side of the dam, shows concrete forms with scaffolding roughly 50 feet high, with scaffolding extending about another 50 feet above, across most of the span of the dam. A group of 14 well-dressed men and women (and therefore not construction workers) is posing in the lower foreground by the lake existing prior to the construction of the concrete dam. Some constru...

    Record Type: Photo

    Building of the Crystal Springs Dam, c. 1887-1888
  2. Laborers of the Crystal Springs Dam, c. 1887-1888 - Print, Photographic

    Laborers of the Crystal Springs Dam, c. 1887-1888. A large number of construction workers, and several horse-drawn wagons, are shown. There is a group of about 15 well-dressed men and women, clearly not construction workers, posing in the center of the frame. None of the people are identified. A shed is on a slope in the center background, and a sluice or conveyor is to the right. There are two more structures on the left farther back. The...

    Record Type: Photo

    Laborers of the Crystal Springs Dam, c. 1887-1888
  3. Various (see individual titles in description) - Image, Digital

    Digital image files of postcards that show scenes of San Mateo County. Color TIFF files were created from originals on July 13, 2025. Scanned at original size, 8-bit, 3600 ppi front, 1200 ppi back. 2025.034.010 - "Crystal Lake Springs, California" published by Pacific Novelty Co., San Francisco and Los Angeles 2025.034.011 - "Schellings California Trading Post, An Old Stage Depot in the Early Days near Atherton, San Mateo County, California...

    Record Type: Photo

    2025.034.010A - Crystal Lake Springs, California

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