White Pine Hollow State Forest

State forest in Dubuque County, Iowa

42°37′47″N 91°06′43″W / 42.62971°N 91.11207°W / 42.62971; -91.11207^[1]Area944 acres (382 ha)

U.S. National Natural Landmark

Designated1967

The White Pine Hollow State Forest is a 944-acre (382 ha) forested area in Dubuque County, Iowa. Of the forest, a 712-acre (288 ha)^[2] tract is a National Natural Landmark and Iowa State Preserve. The state forest is named after its dominant old-growth tree, the white pine. The grove is said to be the only old-growth patch of white pines still growing in Iowa.^[3] The nearest town of any size is Luxemburg.

Formerly known as: "Pine Creek Hollow," and "Pine Hollow".^[2]

Ecology

The Dubuque region is relatively far south for the white pine to thrive. White Pine Hollow, part of the Driftless Area, is a patch of north-facing algific talus slope land, a subset of dolomite karstland with many sinkholes, caverns, and other sharp changes in elevation.^[3] The conifer population may have established itself here at a time when the climate of Iowa was colder than it is today, and this grove could be a relict of what was once a much larger population.^[4]

White Pine Hollow contains over 625 species of plants.^[4] Two endangered species of animals, the Indiana bat and the Iowa Pleistocene snail, have been observed here. One threatened species of plant, the northern wild monkshood, has also been observed growing here.^[3]

Status

The White Pine Hollow State Forest and Preserve was designated as a state forest in 1934, listed as an Iowa State Preserve in 1968, and listed as a National Natural Landmark in 1967.^[4]^[5]

References

^ U.S. Geological Survey Geographic Names Information System: White Pine Hollow State Park
^ ^a ^b Herzberg, Ruth; Pearson, John A. (2001-12-01). The Guide to Iowa's State Preserves. University of Iowa Press. p. 171. ISBN 978-1-60938-008-3.
^ ^a ^b ^c "White Pine Hollow State Forest". Iowa Department of Natural Resources. Retrieved 2010-04-17.
^ ^a ^b ^c Brick, Greg A. (2004). Iowa underground: a guide to the state's subterranean treasures. Boulder CO: Trails Books. p. 39. ISBN 978-1-931599-39-9.
^ "White Pine Hollow Preserve". nps.gov. National Park Service.

Protected areas of Iowa

Federal

National monument	Effigy Mounds
National Historic Site	Herbert Hoover
National Wildlife Refuges	DeSoto Driftless Area Neal Smith Northern Tallgrass Prairie Port Louisa Union Slough Upper Mississippi River

State

State Parks	Ambrose A. Call Backbone Badger Creek Banner Lakes at Summerset Beeds Lake Bellevue Big Creek Black Hawk Brushy Creek Cedar Rock Clear Lake Dolliver Memorial Elk Rock Elinor Bedell Emerson Bay Fairport Fort Defiance Geode George Wyth Memorial Green Valley Gull Point Honey Creek Lacey-Keosauqua Lake Ahquabi Lake Anita Lake Darling Lake Keomah Lake Macbride Lake Manawa Lake of Three Fires Lake Wapello Ledges Lewis and Clark Lower Gar Maquoketa Caves Marble Beach McIntosh Woods Mines of Spain & E.B. Lyons Mini-Wakan Nine Eagles Okamanpedan Palisades-Kepler Pikes Peak Pikes Point Pilot Knob Pillsbury Point Pine Lake Pleasant Creek Prairie Rose Preparation Canyon Red Haw Rice Lake Rock Creek Springbrook Stone Templar Trapper's Bay Twin Lakes Union Grove Viking Lake Volga River Walnut Woods Wapsipinicon Waubonsie Wildcat Den Wilson Island
State Forests	Backbone Barkley Gifford Holst Loess Hills Pilot Mound Shimek Stephens White Pine Hollow Yellow River
State Preserves	A.F. Miller Ames High Prairie Anderson Prairie Behrens Pond and Woodlands Berry Woods Bird Hill Bixby Bluffton Fir Stand Brush Creek Canyon Brushy Creek Cameron Woods Casey's Paha Catfish Creek Cayler Prairie Cedar Bluffs Cedar Hills Sand Prairie Cheever Lake Clay Prairie Claybanks Forest Cold Water Spring Crossman Prairie Decorah Ice Cave Dinesen Prairie Doolittle Prairie Fallen Rock Fish Farm Mounds Five Ridge Prairie Fleming Woods Fort Atkinson Freda Haffner Kettlehole Gitchie Manitou Hanging Bog Hardin City Woodland Hartley Fort Hayden Prairie Hoffman Prairie Indian Bluffs Primitive Area Indian Fish Trap Iowa's State Preserves System Kalsow Kish-Ke-Kosh Prairie Lamson Woods Liska-Stanek Prairie Little Maquoketa Malanaphy Springs Malchow Mounds Manikowski Prairie Mann Wilderness Area Marietta Sand Prairie Mericle Woods Merrill A. Stainbrook Merritt Forest Montauk Mossy Glen Mount Pisgah Cemetery Mount Talbot Nestor Stiles Prairie Ocheyedan Mound Old State Quarry Palisades-Downs Pecan Grove Pellett Woods Pilot Grove Pilot Knob Retz Woods Roberts Creek Rock Creek Island Rock Island Roggman Boreal Slopes Rolling Thunder Prairie Saint James Lutheran Church Savage Woods Searryl's Cave Sheeder Prairie Silver Lake Fen Silvers-Smith Woods Slinde Mounds Starr's Cave Steele Prairie Stinson Prairie Strasser Woods Sylvan Runkel Toolesboro Mounds Turin Loess Hills Turkey River Mounds White Pine Hollow Williams Prairie Wittrock Indian Village Woodland Mounds Woodman Hollow Woodthrush

County

State Parks (Leased)	Bobwhite Cold Springs Crystal Lake Eagle Lake Echo Valley Frank A. Gotch Heery Woods Lake Cornelia Lake Icaria Kearny Margo Frankel Mill Creek Oak Grove Oakland Mills Pammel Sharon Bluffs Spring Lake Swan Lake Three Mile Lake