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"The highest concentration of boulder problems in the Bay Area is side by side with great sport and trad crags. All this combined with legitimate access from one easily located parking area makes it the most popular all around rock climbing venue in the Bay Area."
Of the most prominent summits of California, only Mount Whitney exceeds 3000 meters (9843 feet) of topographic prominence. Five peaks exceed 2000 meters (6562 feet), nine peaks are ultra-prominent summits with more than 1500 meters (4921 feet), and 35 peaks exceed 1000 meters (3281 feet) of topographic prominence.
Opals too thin to produce a "natural" opal may be combined with other materials to form "composite" gems. An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color ...
Big Basin Redwoods State Park is a state park in the U.S. state of California, located in Santa Cruz County, about 36 km (22 mi) northwest of Santa Cruz.The park contains almost all of the Waddell Creek watershed, which was formed by the seismic uplift of its rim, and the erosion of its center by the many streams in its bowl-shaped depression.
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The San Lorenzo River starts at its headwaters above Boulder Creek, it runs through the valley on its way to the city of Santa Cruz, where it then flows into the Monterey Bay and the Pacific Ocean and also supplies the city of Santa Cruz with its drinking water. Much of the river valley is rural and wooded and other areas have neighborhoods and ...
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Boulder in British Columbia, Canada Kämmenkivi stone on the Pisa hill in Kuopio, Finland 2'500 Million years old rocks on a hill in Hyderabad, India. In geology, a boulder (or rarely bowlder) [1] is a rock fragment with size greater than 25.6 cm (10.1 in) in diameter. [2] Smaller pieces are called cobbles and pebbles.