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bogyawn: Alan Cressler and Brent Aulenbach, Pinchoulee Gneiss, Hatchet Creek Group, Precambrian Age, Hatchet Creek, Coosa County, Alabama
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bogyawn: Alan Cressler and Brent Aulenbach, Pinchoulee Gneiss, Hatchet Creek Group, Precambrian Age, Hatchet Creek, Coosa County, Alabama 2
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bogyawn: Allegheny River, at Franklin, Venango County, Pennsylvania 1
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bogyawn: Allegheny River, at Franklin, Venango County, Pennsylvania 2
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bogyawn: Bear Run, upper, Bear Run Nature Reserve, Western Pennsylvania Conservancy, Fayette County, Pennsylvania 1
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bogyawn: Bear Run, upper, Bear Run Nature Reserve, Western Pennsylvania Conservancy, Fayette County, Pennsylvania 2
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bogyawn: Bear Run, upper, Bear Run Nature Reserve, Western Pennsylvania Conservancy, Fayette County, Pennsylvania 3
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 1
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 2
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 3
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 4
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 5
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 6
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bogyawn: Boiling Springs Hollow Run, Hart County, Kentucky 7
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bogyawn: Cahaba River, from Cahaba River National Wildlife Refuge, Bibb County, Alabama 1
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bogyawn: Cahaba River, from Cahaba River National Wildlife Refuge, Bibb County, Alabama 2
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bogyawn: Cahaba River, from Cahaba River National Wildlife Refuge, Bibb County, Alabama 3
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bogyawn: Cahaba River, from Cahaba River National Wildlife Refuge, Bibb County, Alabama 4
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bogyawn: Cahaba River, from Cahaba River National Wildlife Refuge, Bibb County, Alabama 5
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bogyawn: Canyon Creek, Canyon Creek Rest Area, Seward Highway, Kenai Peninsula Borough, Alaska
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bogyawn: Chewacla Creek, Chewacla State Park, Lee County, Alabama
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bogyawn: Chewacla Creek, Chewacla State Park, Lee County, Alabama
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bogyawn: Chewacla Creek, Chewacla State Park, Lee County, Alabama 2
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bogyawn: Chewacla Creek, Hollis Quartzite Outcrop, Chewacla State Park, Lee County, Alabama
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 1
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 11
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 12
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 2
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 3
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bogyawn: Elk Creek, near Girard, Erie County, Pennsylvania 4