Educational Permafrost Gallery (EPPG) by Gerald "JJ" Frost
Gerald "JJ" Frost, ABR, Inc.
Please attribute photo credit and copyright to Gerald Frost, unless otherwise indicated.
Please click on an image to see a larger version of the permafrost feature!
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 Aerial view of non-sorted circles with alder shrubs (24 July 2012).
Maybe Creek Drainage, National Petroleum Reserve, Alaska.
Photo credit: Gerald "JJ" Frost
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 Non-sorted circles in clay-rich soils (24 July 2012).
Maybe Creek Watershed, National Petroleum Reserve, Alaska.
Photo credit: Gerald "JJ" Frost
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 Cryoplanation terraces (14 May 2016).
Chena Dome, Yukon-Tanana Uplands, Alaska.
Photo credit: Gerald "JJ" Frost
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 Cryoplanation terraces (14 May 2016).
Chena Dome, Yukon-Tanana Uplands, Alaska.
Photo credit: Gerald "JJ" Frost
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 Cryoplanation terraces (15 May 2016).
Chena Dome, Yukon-Tanana Uplands, Alaska.
Photo credit: Gerald "JJ" Frost
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 Incipient non-sorted circles in highly cryoturbated soils (23 July 2012).
Maybe Creek Watershed, National Petroleum Reserve, Alaska.
Photo credit: Gerald "JJ" Frost
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 Incipient non-sorted circles in highly cryoturbated soils (4 July 2012).
Obskaya, northwestern Siberia, Russia.
Photo credit: Gerald "JJ" Frost
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 Incipient non-sorted circles in highly cryoturbated soils (4 July 2012).
Obskaya, northwestern Siberia, Russia.
Photo credit: Gerald "JJ" Frost
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 Non-sorted circles in clay-rich soils (23 July 2012).
Umiat, National Petroleum Reserve, Alaska.
Photo credit: Gerald "JJ" Frost
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 Shrub tundra with non-sorted circles in clay-rich soils (23 July 2012).
Maybe Creek Watershed, National Petroleum Reserve, Alaska.
Photo credit: Gerald "JJ" Frost
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 Closed-system pingo with collapsing summit (Summer 2017).
North Slope, National Petroleum Reserve, Alaska.
Photo credit: John E. Shook
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 Massive ice exposure at summit of closed-system pingo (Summer 2017).
North Slope, National Petroleum Reserve, Alaska.
Photo credit: John E. Shook
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 Sorted circles in stony alpine soils (Fall 2017).
Alaska Range, Alaska.
Photo credit: Dorte Dissing
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 Sorted circles in alpine tundra (28 May 2017).
Chena Dome, Yukon-Tanana Uplands, Alaska.
Photo credit: Gerald "JJ" Frost
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 Non-sorted stripes in clay-rich soils (21 July 2012).
Umiat area, Arctic Foothills, Alaska.
Photo credit: Gerald "JJ" Frost
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