On this page
- Why is the Hoover museum the only paid stop on Iowa's park list?
- Why is the Effigy Mounds visitor centre not in Harpers Ferry?
- Which Effigy Mounds trail reaches the Mississippi overlooks?
- Which Madison County bridge can you still drive across?
- Is there a fee to walk onto the Field of Dreams in Dyersville?
- Do Iowa state parks really charge nothing?
- When is the Iowa State Fair in 2027?
- Where does the train stop for Des Moines?
- How far is Des Moines from O'Hare and Minneapolis–St Paul?
- Why is a Des Moines hotel room taxed 12% when shopping is 7%?
- How much more snow falls on Dubuque than on Des Moines?
- FAQ
Iowa, in the Midwest between Illinois and Nebraska, has two National Park Service sites, and neither charges an entrance fee. Effigy Mounds National Monument, above the Mississippi in the north-east, protects more than 200 American Indian mounds and had 56,912 recreation visits in 2025. Herbert Hoover's birthplace at West Branch had 106,672.
The rest of an Iowa trip is mostly by car, to Madison County's covered bridges, the Field of Dreams at Dyersville and the State Fair in Des Moines. We read the figures below on 27 October 2026 on the National Park Service's pages, the National Archives', the Iowa Code, the Iowa Department of Revenue's, the attractions' own sites, Amtrak's and NOAA's normals.
Why is the Hoover museum the only paid stop on Iowa's park list?
The Herbert Hoover Presidential Library & Museum is run by the National Archives, not the Park Service, and charges $12 for an adult. No other place in the table prints an entrance fee.
| Place | What it is | Visits in 2025 | Entry |
|---|---|---|---|
| Effigy Mounds National Monument | More than 200 American Indian mounds above the Mississippi, sacred to 20 tribes | 56,912 | No entrance fee |
| Herbert Hoover National Historic Site | Birthplace cottage, schoolhouse, Friends meetinghouse, gravesite and tallgrass prairie in West Branch | 106,672 | No entrance fee |
| Herbert Hoover Presidential Library & Museum | The presidential museum, run by the National Archives | — | $12 an adult |
| Madison County covered bridges | Six covered bridges around Winterset | — | Open on foot or by bicycle |
| Field of Dreams Movie Site | The baseball field from the film, at Dyersville | — | No field fee printed; house tours charged |
| Iowa state parks | Run by the Department of Natural Resources | — | No entrance fee, by law |
Effigy Mounds and the Hoover site are not on the 2026 list of eleven parks that charge visitors from abroad aged 16 and over a $100 surcharge. Effigy Mounds cannot sell the $250 non-resident annual pass at all, and Hoover's site no longer sells Senior or Annual passes. Two adults from abroad therefore pay $24 in entry fees, all of it at the Hoover museum. Our guide to national park fees for international visitors covers the parks that do charge.
The Hoover museum opens daily from 9 a.m. to 5 p.m. and closes on Thanksgiving, Christmas Day and New Year's Day. The National Archives charges $12 for adults aged 19 to 61, $10 for seniors from 62, military and college students, and $5 for children aged 6 to 18.
The Park Service's own fees page gives the same prices with different age bands, 16 to 61 for adults and 6 to 15 for children. Neither page says whether a federal pass covers the museum.
Herbert Hoover National Historic Site lies 0.3 miles north of exit 254 on I-80, at 110 Parkside Drive in West Branch. Its grounds are open 24 hours, and the visitor centre from 9 a.m. to 5 p.m. The historic buildings keep shorter hours in winter.
Hoover, the 31st President, was orphaned at nine and left West Branch for good; he and Lou Henry Hoover are buried here. The Herbert Hoover Highway, from exit 249, is a scenic road between Iowa City and West Branch, about 12 miles apart by road.
Why is the Effigy Mounds visitor centre not in Harpers Ferry?
The Effigy Mounds visitor centre carries a Harpers Ferry postal address but stands 3 miles north of Marquette, at 151 Hwy 76 on the Great River Road. The town of Harpers Ferry is about 10 miles further north, so a satnav set to the town overshoots. Enter the visitor centre's street address instead.
The Park Service puts the visitor centre about 65 miles north of Dubuque, and 22 miles south-east of Waukon. It opens from 9 a.m. to 4:30 p.m. every day except Thanksgiving, Christmas Day, New Year's Day and days of extreme weather. Ranger talks and guided tours run in summer.
Effigy Mounds has no car tour. The park says the reason is the site's sacred nature as an American Indian burial and ceremonial ground. The mounds are seen on foot, by trails that start at the visitor centre or half a mile south of it.
Which Effigy Mounds trail reaches the Mississippi overlooks?
The Fire Point Loop is the Effigy Mounds trail to the Mississippi overlooks. It runs 2 miles round trip from the visitor centre, with 350 feet of climbing and about an hour's walk. It passes over 25 mounds, including the Little Bear and Great Bear effigies, and the park advises walking it clockwise.
| Trail | Round trip | Climb | Time |
|---|---|---|---|
| Yellow River Boardwalk | 1 mile | None | 30 minutes |
| Fire Point Loop | 2 miles | 350 feet | 1 hour |
| Twin Views | 3 miles | 350 feet | 1½ hours |
| Third Scenic View | 4 miles | 350 feet | 2 hours |
| Hanging Rock | 7 miles | 600 feet | 3½ hours |
| Marching Bear Group (South Unit) | 4 miles | 350 feet | 2 hours |
The table gives the park's own figures. Hanging Rock is the hardest trail in the monument, in the park's words. The first five start at the visitor centre in the North Unit.

The Marching Bear Group in the South Unit of Effigy Mounds, ten bear-shaped and three bird-shaped effigy mounds.
The South Unit's trailhead is on the west side of Hwy 76, half a mile south of the visitor centre. Walkers park at the Iowa DNR day-use area east of the road, then cross the highway and railway tracks in constant use. Its Marching Bear Group holds ten bear-shaped and three bird-shaped mounds, the largest effigy group in the monument.
The Sny Magill Unit, about 10 miles south, holds over 100 mounds on 141 acres of floodplain and sometimes closes in seasonal floods.
Which Madison County bridge can you still drive across?
Cedar Bridge is the only covered bridge in Madison County still open to cars, within a height limit, and it is a replica. Arson burned the original in 2002 and again in 2017, and the new bridge was finished in 2019. All six bridges are open on foot or by bicycle.
Madison County once had at least nineteen covered bridges, built between 1868 and 1889, and six remain, five of them original. Holliwell, built in 1880 and 110 feet long, is the longest remaining timber bridge in Iowa, according to the county's tourism office. Holliwell and Roseman are the two bridges in the film The Bridges of Madison County. Imes, built in 1870, is the oldest and now stands in St. Charles.
Roseman, Hogback and Holliwell are reached on gravel. Holliwell lies 1.9 miles down a gravel road, Hogback just over 2, and Roseman 2.2 miles via Elmwood Avenue or 4.3 via Roseman Bridge Road. Imes and Cutler-Donahoe, in Winterset City Park, have paved access. Winterset is about 37 miles from Des Moines by our own routing.
The Madison County Chamber & Welcome Center, at 73 Jefferson Street in Winterset, hands out a bridge map. Its guided tours take two hours in your own car, by appointment, and cost $50 for up to five passengers. The 2026 Covered Bridge Festival was held on 10 and 11 October; the 2027 date had not been published.
Is there a fee to walk onto the Field of Dreams in Dyersville?
The Field of Dreams Movie Site prints no admission fee for the field on any of its pages we read. The farmhouse tour, a live 30-minute guided visit, should be booked ahead, but no price is printed either. The site belongs to Dyersville Events, Inc., a non-profit, at 28995 Lansing Road.
The field is open from sunrise to sunset all year, weather permitting, and can be closed for private rentals and events. The site is cashless and has no ATM, and visitors may not bring their own food. Leashed dogs are allowed outside; drones and camping are not. The site cannot guarantee corn at the start or end of its season.
Dyersville is about 25 miles west of Dubuque on US 20 by the site's own figure, 30 by our routing. The site puts the drive at about 3½ hours from Des Moines or Chicago and 4 from Minneapolis.
Do Iowa state parks really charge nothing?
Iowa state parks charge no entrance fee, by law. Iowa Code section 461A.35A says the department "shall not impose a fee upon a person for entering" a state park or preserve. No Department of Natural Resources page we read says it in so many words, but none lists an entrance fee either.
Camping, rental buildings and special privileges are charged under a separate section of the code. We could not find standard campsite rates on any current page. Booking online adds $4.50 per transaction, and by the call centre $6. Check-in is at 4 p.m. and check-out at 3 p.m.
From 1 May to 31 October a weekend booking needs at least two nights. A stay is capped at 14 nights in a row and six people a site. Day-use areas usually have no bins, so carry rubbish out, and state parks are wildlife refuges where hunting is banned.
When is the Iowa State Fair in 2027?
The Iowa State Fair runs from 12 to 22 August 2027 in Des Moines, eleven days ending on the Sunday two weeks before Labor Day. The fair has published dates for 10 to 20 August 2028 and 9 to 19 August 2029.
The 2026 fair drew 1,218,834 visitors, an attendance record, beating 1,182,682 in 2024. Its busiest day was Saturday 22 August 2026, with 130,654. On 27 October 2026 the fair had not yet published admission prices for 2027.
Where does the train stop for Des Moines?
Des Moines has no Amtrak station. The nearest is Osceola on the California Zephyr, about 49 miles and an hour from the Iowa State Capitol by our own routing. The Zephyr runs daily between Chicago and Emeryville, for San Francisco, and calls at Burlington, Mt. Pleasant, Ottumwa, Osceola and Creston before Omaha.

The Iowa State Capitol in Des Moines, about 6 miles by road from the airport and 49 from Amtrak's Osceola stop.
The Southwest Chief, daily between Chicago and Los Angeles, stops in Iowa only at Fort Madison, between Galesburg, Illinois, and La Plata in Missouri. Amtrak's route pages give no station-to-station times, so we do not quote any. The Zephyr crosses Colorado further west. For Effigy Mounds, the Park Service names La Crosse, Wisconsin, 65 miles away, as the nearest Amtrak station, with Greyhound and Jefferson Lines buses.
How far is Des Moines from O'Hare and Minneapolis–St Paul?
Des Moines is about 330 miles from Chicago O'Hare, around 6½ hours by road, and 239 miles from Minneapolis–St Paul airport, about 4½ hours. Our pages on Illinois and Minnesota list the two airports' international routes.
Des Moines International's own site refused our requests, so its routes are not listed here. The Eastern Iowa Airport in Cedar Rapids has five airlines and 17 nonstop routes, all domestic, among them Chicago, Minneapolis, Atlanta, Dallas/Fort Worth and Denver. Dubuque Regional's site could not be reached. The Field of Dreams site says Dubuque has a daily commercial flight from O'Hare.
| From | To | Distance | Drive |
|---|---|---|---|
| Des Moines | Chicago O'Hare | About 330 miles | 6½ hours |
| Des Moines | Minneapolis–St Paul airport | About 239 miles | 4½ hours |
| Des Moines | Omaha | About 136 miles | 2½ hours |
| Des Moines | Winterset | About 37 miles | 50 minutes |
| Des Moines | Iowa City | About 113 miles | 2¼ hours |
| Des Moines | Dubuque | About 189 miles | 3¾ hours |
| Iowa City | Herbert Hoover visitor centre | About 12 miles | 20 minutes |
| Chicago O'Hare | Dubuque | About 170 miles | 4 hours |
| Dubuque | Effigy Mounds visitor centre | About 65 miles (Park Service) | 1 hour 40 minutes |
| Field of Dreams | Effigy Mounds visitor centre | About 50 miles | 1 hour 25 minutes |
| Minneapolis–St Paul airport | Effigy Mounds visitor centre | About 191 miles | 4 hours 20 minutes |
The distances are our own routing without traffic, except the one marked as the Park Service's. The Park Service also puts Effigy Mounds 92 miles from the Eastern Iowa Airport and 65 from La Crosse's airport in Wisconsin. Our guide to renting a car in the USA covers picking one up at either hub.
Why is a Des Moines hotel room taxed 12% when shopping is 7%?
Des Moines hotel rooms pay Iowa's 5% hotel and motel tax plus the city's 7%, for 12%, while shopping pays 7%. The 1% local option sales tax does not apply to rooms, so the two totals are built separately.
Iowa's state sales tax is 6%, and counties and cities may add a 1% local option. Des Moines, Dubuque, Dyersville, Winterset, West Branch, Cedar Rapids, Sioux City, Marquette and Harpers Ferry all charge 7% in total. Iowa City added the local option on 1 July 2026, so it now charges 7% too. Places without it stay at 6%.
The 12% room rate applies in every town named above, from the Department of Revenue's table effective 1 July 2026. Some places add less: rooms in Adair pay 10%. Our guide to sales tax in the USA explains why prices are shown before tax.
How much more snow falls on Dubuque than on Des Moines?
Dubuque averages 42.5 inches of snow a year against 36.5 in Des Moines, and 61.4 days a year never rise above freezing there. Hot days are rare in Dubuque: Sioux City averages 24.6 days a year at or above 90°F, Iowa City 24.2, Des Moines 22.0 and Dubuque 6.2.
| Month | Des Moines | Dubuque | Sioux City | Iowa City |
|---|---|---|---|---|
| January | 31°F / 14°F | 27°F / 11°F | 30°F / 10°F | 29°F / 12°F |
| April | 62°F / 41°F | 58°F / 37°F | 61°F / 37°F | 62°F / 37°F |
| July | 86°F / 66°F | 82°F / 62°F | 85°F / 63°F | 84°F / 63°F |
| October | 63°F / 43°F | 60°F / 40°F | 63°F / 38°F | 63°F / 40°F |
The table gives NOAA's 1991 to 2020 average highs and lows at each city's station. May and June are the wettest months at all four, and January the driest. The Dubuque station is the nearest of the four to Effigy Mounds, whose busiest month in 2025 was July, with 10,121 visits.
All of Iowa is on Central Time, and its clocks go back an hour at 2 a.m. on 1 November 2026.
