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United States
California
Santa Clara County
San Jose

Historic Mineral Springs Grotto

Discover
Places to see

Natural Monuments

United States
California
Santa Clara County
San Jose

Historic Mineral Springs Grotto

Highlight • Natural Monument

Historic Mineral Springs Grotto

Recommended by 6 mountain bikers

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    Location: San Jose, Santa Clara County, California, United States

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    Best Mountain Biking Routes to Historic Mineral Springs Grotto

    5.0

    (5)

    33

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    1. Alum Rock Park – Upper Penitencia Creek loop from Berryessa

    17.5km

    01:53

    510m

    510m

    Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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    Intermediate

    11

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    2. Inspiration Point – Alum Rock Road loop from Milpitas

    27km

    01:53

    310m

    310m

    Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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    Intermediate

    2

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    3. Inspiration Point – Alum Rock Road loop from Berryessa

    37.6km

    03:05

    840m

    840m

    Intermediate mountain bike ride. Good fitness required. Suitable for all skill levels.

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    Intermediate

    Tips

    January 10, 2025

    The Mineral Springs Grotto in Alum Rock Park tells the story of the area's geological history and abundance of natural mineral springs. Developed between 1891 and 1902, masons crafted intricate stone grottoes using native rock to protect the springs: sulfur, magnesia, iron, and carbonated soda springs. These springs once supported a thriving health resort, with waters believed to have medicinal properties. Today park visitors can explore the grottoes and interpretive panels along the Creek Trail to learn about the springs’ historical significance and the park’s transformation from an ancient ocean beach to the stunning canyon seen today. Unfortunately, soaking is not allowed these days.

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      Elevation 150 m

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      Wednesday 29 October

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      Max wind speed: 4.0 km/h

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      Location: San Jose, Santa Clara County, California, United States

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