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Effigy Mounds National Monument: fees, hours, camping and when to visit

Updated October 30, 2026. Based on National Park Service data. Published by Humblebee.

Entrance fee
None[1]
Busiest month (2025)
July[2]
Recreation visits, 2025
56,912[3]
Visitor centers
1[4]

Effigy Mounds National Monument is a National Park System unit in Iowa[5]. NPS lists it as a fee-free park, so there is no entrance fee[1].

Entrance fees and passes

The National Park Service lists no entrance fee for Effigy Mounds National Monument[1]. Some tours, campgrounds or permits inside a park can still have their own fees.

When to visit and hours

NPS lists the park trails as open every day, from dawn until dusk[6]. In 2025 the busiest month was July with 10,121 recreation visits, and the quietest was October with 900[2]. Summer temperatures reach the upper 80s with higher heat indexes from humidity, and winter daytime highs sit in the 20s, in degrees Fahrenheit[7]. NPS lists one visitor center here[4]. Confirm hours on the official park page before you go[6].

January 2025: 2,151 recreation visitsJanFebruary 2025: 2,615 recreation visitsFebMarch 2025: 3,644 recreation visitsMarApril 2025: 2,254 recreation visitsAprMay 2025: 6,109 recreation visitsMayJune 2025: 8,724 recreation visitsJunJuly 2025: 10,121 recreation visits10,121JulAugust 2025: 9,456 recreation visitsAugSeptember 2025: 7,664 recreation visitsSepOctober 2025: 900 recreation visitsOctNovember 2025: 1,502 recreation visitsNovDecember 2025: 1,772 recreation visitsDec
Recreation visits counted by the National Park Service in each month of 2025. The busiest month, July, is highlighted[2].
Show visits by month
Month, 2025Recreation visits
January2,151
February2,615
March3,644
April2,254
May6,109
June8,724
July10,121
August9,456
September7,664
October900
November1,502
December1,772
Show visits by year
Year Recreation visits
2021[3] 66,734
2022[3] 56,422
2023[3] 61,795
2024[3] 61,975
2025[3] 56,912

Pets and dogs

Under the national NPS pet rule, pets must be kept in a crate or cage or on a leash of six feet or less where they are allowed[8]. Pets are not allowed in public buildings or on designated swimming beaches, with service animals excepted[8]. Each park can close more areas to pets, so check with the park about specific trails[8].

Before you go

Questions people ask

Is there an entrance fee at Effigy Mounds National Monument?
NPS lists the monument as fee-free, so there is no entrance fee[1].
What is the busiest month at Effigy Mounds?
In 2025 the busiest month was July with 10,121 recreation visits, and the quietest was October with 900[2].
Can I bring my dog to Effigy Mounds?
Where pets are allowed, NPS rules require a leash no longer than six feet or a crate[8]. The park can close more areas to pets, so ask the park about trails[8].
What are the hours at Effigy Mounds?
NPS lists the park trails as open daily from dawn to dusk[6].

Facts and sources

  1. NPS lists Effigy Mounds National Monument as a fee-free park: there is no entrance fee. National Park Service
  2. NPS recreation visits by month, 2025 (chart on this page). NPS Visitor Use Statistics
  3. NPS recreation visits per year: 2021: 66,734, 2022: 56,422, 2023: 61,795, 2024: 61,975, 2025: 56,912. NPS Visitor Use Statistics
  4. Visitor centers listed by NPS: 1 (Visitor Center). National Park Service
  5. Effigy Mounds National Monument is a unit of the U.S. National Park System (designation: National Monument) in Iowa. National Park Service
  6. Operating hours, Park Hours: Park trails are open daily from dawn to dusk. National Park Service
  7. NPS weather and seasons overview for Effigy Mounds National Monument. National Park Service
  8. National Park Service rule 36 CFR 2.15: where pets are allowed they must be crated, caged or on a leash no longer than six feet at all times, and pets are not allowed in public buildings, on public transportation or on designated swimming beaches (service... eCFR, 36 CFR 2.15
  9. Activities NPS lists for Effigy Mounds National Monument: Guided Tours, Hiking, Front-Country Hiking, Junior Ranger Program, Wildlife Watching, Birdwatching, Museum Exhibits, Shopping, Bookstore and Park Store. National Park Service

Fees and hours are what NPS lists in its data at the snapshot date. They change: tell readers to confirm on the official park page before a trip. Visits are NPS recreation visits (counted entries, not unique people). Use them only for this park's own months and years, never to rank parks. Campground list and site counts come from NPS and Recreation.gov records. Count fields can differ slightly between the two. The pet rule is the national baseline (36 CFR 2.15). The park may close more areas to pets. Do not claim specific trails allow dogs unless a fact says so.