Park rocks
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| St. Nicholas Park, Manhattan |
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| St. James Park, Bronx |
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| Remillard Park, Berkeley |
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| Indian Rock, Berkeley |
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| Mont-Royal, Montreal |
P.S. Read about the nearby nature of rock outcroppings.
P.P.S. Carolyn Yerkes writes about the survival of rock outcroppings despite the 1811 grid plan in The Greatest Grid, edited by Hilary Ballon.