Indiana Dunes National Park Trivia
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38 free Indiana Dunes National Park trivia questions with answers — geography quiz, new questions added Sep 2026.
This Indiana Dunes National Park trivia quiz covers the 15 miles of Lake Michigan shore where sand dunes, bogs, prairies and steel mills sit side by side an hour from Chicago. Questions cover the geology of the dunes and the glacial lakes that built them, Mount Baldy the living dune, the singing sands, the bogs and prairies scattered across three counties, and a plant list that ranks in the top ten of the whole park system, with arctic bearberry growing beside prickly pear. The history is unusually rich for a young park: Henry Chandler Cowles's 1899 studies that helped found the science of ecology, the Hoosier Slide dune carted off to make Ball jars, Diana of the Dunes, the world's-fair houses barged in from Chicago in 1935, the Bailly and Chellberg homesteads, Dorothy Buell's Save the Dunes Council, the 1966 national lakeshore and the 2019 upgrade to the country's 61st national park. Difficulty runs from easy to expert and is marked on every question, so it works for a beach-day game or a serious park-nerd challenge. Every answer was checked against Wikipedia and each question carries its citation. If you enjoy it, try our US National Parks quiz next.
30 of 38 questions with answers and explanations. Play the quiz
Q 01Indiana Dunes National Park's western end, around Miller Woods, lies inside which steel city?
Gary
Gary holds the park's western tip: Miller Woods lies between the city's Miller Beach neighborhood and the Gary Works mill, so a national park trail starts next door to a working steel plant.
Q 02The 2019 law making Indiana Dunes a national park rode inside what kind of bill?
Spending
A federal spending bill carried the rename: the stand-alone version passed the House in 2017 but never got a Senate vote, so sponsors folded it into the February 2019 funding package.
Q 03Why did the Park Service oppose national park status for Indiana Dunes?
It fit better with lakeshores and seashores
The Park Service said it fit better with lakeshores and seashores, since national parks are usually far larger; Congress overruled its own agency and renamed the site anyway in 2019.
Q 04Which steel company built its Burns Harbor mill on leveled dunes in the 1960s?
Bethlehem Steel
Bethlehem Steel bulldozed the dunes for its Burns Harbor mill and sold some 2.5 million cubic yards of the sand as fill, which Northwestern University used to push its Evanston campus out into Lake Michigan.
Q 05Henry Cowles's 1899 study of Indiana Dunes plant life helped launch which science in America?
Ecology
Ecology: Cowles learned Danish to read Eugen Warming's book on plant communities, then tested its ideas on Lake Michigan's shore.
Q 06Which first National Park Service director held 1916 hearings on a Sand Dunes National Park?
Stephen Mather
Stephen Mather drew about 400 people to his Chicago hearing and not one spoke against the park, yet America's entry into World War I shelved the idea for half a century.
Q 07The Hoosier Slide, a 200-foot Indiana dune gone by 1920, was hauled away chiefly for what use?
Making glass
Making glass: Ball Brothers of Muncie turned the sand into blue-tinted canning jars and Hemingray into insulators, so Michigan City's landmark dune left town by the boxcar.
Q 08Who founded and led the Save the Dunes Council from 1952 to 1968?
Dorothy Buell
Dorothy Buell gathered local women at her Ogden Dunes home in June 1952, reasoning that women had won the state park a generation earlier and could win again.
Q 09How did the Save the Dunes Council get its first 56 acres of duneland in 1953?
Bought it at a tax sale
Bought it at a tax sale: Cowles Tamarack Bog cost $1,730, and part of the money came from the leftover treasury of the failed 1916 national park campaign.
Q 10Which Illinois senator led the congressional fight to save the dunes in the 1960s?
Paul Douglas
Paul Douglas took up the fight in 1958 because Indiana's own delegation sided with industry; opponents mocked the Illinois senator as the third senator from Indiana.
Q 11The so-called Kennedy Compromise of the 1960s paired the new park with what?
A deepwater port
The Kennedy Compromise gave industry a deepwater port at Burns Harbor and conservationists their lakeshore; the save-the-dunes camp took it bitterly, since the dunes they had fought hardest for were already bulldozed.
Q 12Which wandering dune at the east end of Indiana Dunes rolls several feet inland every year?
Mount Baldy
Mount Baldy moves because trampling killed the marram grass that pinned it down, so it is slowly burying its own parking lot; the summit now opens only on ranger-led hikes.
Q 13What did scientists name the hidden shafts in Indiana Dunes' big moving sand hill after one swallowed a boy in 2013?
Q 21In 1913, which touring Europeans ranked the Indiana dunes with Yellowstone, Yosemite and the Grand Canyon as America's must-see sights?
Botanists
Botanists from Europe, led across the country by Chicago professor Henry Cowles, agreed the Lake Michigan dunes were worth seeing on even the briefest American trip; he retold the story at the 1916 national park hearings.
Q 22Which glacial ridge behind the Indiana Dunes is named for the Indiana college city on its crest?
Valparaiso Moraine
The Valparaiso Moraine is also a continental divide: rain on its north slope drains to Lake Michigan and the Atlantic, while rain on its south slope heads for the Mississippi and the Gulf of Mexico.
Q 23Which ancient beach ridge at Indiana Dunes, the middle of three, shares its name with the surrounding region and its rivers?
Decomposition chimney
Decomposition chimneys form where buried black oaks rot away and leave hollow shafts under loose sand; in 2013 a six-year-old boy was dug out alive after more than three hours about 11 feet down.
Q 14What nickname did Indiana Dunes beaches earn for the squeak they make underfoot?
Singing sands
Singing sands squeak underfoot because the beach is mostly clean quartz left by glaciers; the park even named its visitor newspaper The Singing Sands.
Q 15Indiana Dunes' five Century of Progress houses came from which event?
The 1933 Chicago World's Fair
The 1933 Chicago World's Fair showed them as homes of tomorrow; in 1935 developer Robert Bartlett floated four of them across Lake Michigan by barge to lure buyers to his resort at Beverly Shores.
Q 16Which University of Chicago graduate, living alone in the dunes from 1915, was nicknamed Diana of the Dunes?
Alice Mabel Gray
Alice Mabel Gray, a mathematics graduate, left Chicago on Halloween 1915 with a blanket and two pistols; a newspaper likened her duck shooting to the Roman goddess of the hunt, and the name stuck.
Q 17Which French-Canadian fur trader, among the first known settlers of the Indiana dunes, opened a trading post there in the 1820s?
Joseph Bailly
Joseph Bailly arrived just as the fur trade was fading, so he turned innkeeper and land speculator where two old trails crossed; his family's Bailly Homestead still stands in the park.
Q 18The Chellberg Farm preserved at Indiana Dunes represents settlers from which country?
Sweden
Anders and Johanna Kjellberg left Sweden in 1863 and respelled the name Chellberg; three generations worked the farm until grandson Carl sold it to the Park Service in 1972.
Q 19Which small, federally endangered shorebird has stretches of Indiana Dunes beach set aside as critical habitat?
Piping plover
Piping plover numbers on the Great Lakes once fell below 20 pairs; the birds nested on these beaches historically, so in 2001 about five miles of dunes shoreline, state park included, was named critical habitat for their recovery.
Q 20Pinhook Bog, an outlying unit of Indiana Dunes National Park, fills a hollow left by what?
A melting block of ice
A melting block of ice, stranded by the retreating glacier some 14,000 years ago, left the hollow; moss then grew a floating mat across the water, so the bog's boardwalk sinks underfoot as visitors cross.
Calumet
Calumet is the middle step of a staircase the shrinking lake left behind: the Glenwood ridge stands about 60 feet above today's water, Calumet about 40 and Tolleston about 25.
Q 24What winter hazard forms along Indiana Dunes beaches when wind and waves pile lake ice into hollow ridges?
Shelf ice
Shelf ice builds out from the beach without ever freezing to the lake bottom, so a thin spot can give way like a trapdoor into frigid water; the park forbids stepping onto it.
Q 25When are rip currents most likely along Indiana Dunes beaches?
In a strong north wind
In a strong north wind, waves have some 300 miles of open lake to build before hitting this southern shore; water piles up behind the sandbar, then bursts back out through a gap and drags swimmers with it.
Q 26Which prairie remnant near Griffith, a National Natural Landmark, is an outlying unit of Indiana Dunes National Park?
Hoosier Prairie
Hoosier Prairie is kept open the old way, with controlled burns that kill invading trees; though it lies inside the park boundary, most of it is owned and run by Indiana's Department of Natural Resources.
Q 27The name of the park's Mnoké Prairie restoration, suggested by Potawatomi elders, means what?
Good earth
Mnoké is a Potawatomi word meaning 'good earth', with 'mno' meaning good; Potawatomi elders suggested the name for the restored prairie in the central part of the park.
Q 28Which post-war prefab house, built from porcelain-enameled steel panels, survives at Beverly Shores inside Indiana Dunes National Park?
Lustron
Lustron homes were factory-built to ease the post-war housing shortage; the park's examples stand near the Armco-Ferro House, a 1930s steel-and-enamel show home whose design inspired them.
Q 29The Oak Savannah rail trail through the park's Hobart Prairie Grove follows which old railroad?
Elgin, Joliet and Eastern
The Oak Savannah Trail runs about nine miles from Hobart to Griffith on the former Elgin, Joliet and Eastern line; two miles cross Hobart Prairie Grove, a rare bur oak savanna above Lake George.
Q 30Which fossils, stem discs of ancient sea lilies, wash up on Indiana Dunes beaches but may not be taken home?
Crinoids
Crinoids were animals, relatives of sea stars, from a warm sea that covered Indiana some 450 million years ago; their stem discs look like stone Cheerios, and only beach glass, counted as litter, may leave the park.