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tbdebley: IMG_7997 Phil Stoffer_USGS_at Castle Rock
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tbdebley: IMG_7992_Phil Stoffer Explaining Castle Rock Formation
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tbdebley: IMG_7974 Phil Stoffer Explaining Geology
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tbdebley: IMG_8003 David Loeb asking question of Phil Stoffer
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tbdebley: IMG_7969 Castle Rock Detail
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tbdebley: IMG_7983 Castle Rock Detail
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tbdebley: IMG_7971 Castle Rock in Black and White
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tbdebley: IMG_7985 Castle Rock Detail
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tbdebley: IMG_8009 Rock Formation
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tbdebley: IMG_8015_Castle Rock Falls
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tbdebley: IMG_8032_King's Creek
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tbdebley: IMG_8031_King's Creek
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tbdebley: IMG_8035 King's Creek