Agency-listedIDNR · dispersedFree

Big Marsh WMA

Drive-up · Iowa Dept. of Natural Resources · IA · 42.67588, -92.83513
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Iowa Dept. of Natural Resources lists this site. Someone from the agency inventoried it, so it is a real camp — not a spot we guessed at. What changes is conditions — roads, gates, closures, fire rules. Check those with the unit before you commit to the drive.

Iowa DNR Wildlife Management Area — about 8,364 acres across 12 separate parcels, Butler County. Primitive camping is allowed statewide on Iowa DNR wildlife areas by rule — no permit, no camping fee — for up to 14 consecutive days, UNLESS that area posts restrictions on site (Iowa Admin. Code r. 571-51.11). The DNR can close any individual area to camping just by putting up a sign, and there is no statewide list of which ones have, so read the signs at the entrance and treat a posted restriction as final. Iowa DNR's own camping article also says to stay 100+ yards from parking lots, boat ramps and jetties; that sentence was dropped from the rule in the June 2025 rewrite, but it is still good practice and may be posted locally. These are working wildlife areas, not campgrounds: expect a gravel parking area and nothing else — no water, no toilet, no table, no fire ring. Pack water in and everything out. Much of this unit is marsh, river bottom or seasonally flooded ground — dry, level tent ground can be genuinely scarce and access roads can be under water in spring. Fall is a hard time to use these: Iowa's shotgun deer seasons and waterfowl season put a lot of hunters on WMAs, and blaze orange plus a different destination is the smarter call. The pin is a representative point inside the official DNR boundary, NOT a campsite or a parking lot — scout the actual access off the DNR atlas before you commit to it after dark.

USGS topo — contours & terrain
USGS topographic map of Big Marsh WMA
Aerial — USGS / NAIP
Aerial image of Big Marsh WMA
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Weather outlook — at Big Marsh WMA
Loading the latest forecast…
Live NWS area forecast (~2.5 km grid, not elevation-corrected). Camp sits at 938 ft.
Fire & smoke — around Big Marsh WMANIFC · AirNow
Checking active fires & air quality…
Active wildfires from NIFC (within ~50 mi); air quality from AirNow. Always confirm current fire restrictions with the managing office before you go.

Everything you need — measured from Big Marsh WMA · Iowa Dept. of Natural Resources · IA

15 MI30 MI60 MIYOUR CAMPN ↑Water · 21 miWDump · 18 miDFuel · 5 miFCasey's General Store · Grocery · 5 miGSiech's Parkersburg Pharmacy · Pharmacy · 7 miRxMiller's True Value Hardware Store · Hardware · 18 miHParkersburg Tire and Allignment · Mechanic · 8 miMLaundry Mat · Laundry · 7 miLShower · 18 miShAir-up · 18 miAUnityPoint Clinic Family Medicine – Parkersburg · Urgent care · 7 mi+J&J Tackle · Outfitter · 15 miOAllison Post Office · Mail · 6 mi@Roling Ford · EV fast charger · 14 miEV
Straight-line miles · bearings approx · roads run longer
Nearest of each
  • FFuel5 mi
  • GGrocery5 mi
  • @Mail6 mi
  • RxPharmacy7 mi
  • LLaundry7 mi
  • +Urgent care7 mi
  • MMechanic8 mi
  • EVEV fast charger14 mi
  • OOutfitter15 mi
  • DDump18 mi
  • ShShower18 mi
  • AAir-up18 mi
  • HHardware18 mi
  • WWater21 mi
≤30 mi30–4545+water

The read: water is a real 21-mi drive, fuel & food sit about 5 mi out.

Not within 60 mi: Propane. Plan those before you head up.

One dot per need — the nearest of each kind, straight-line from camp. Places from OpenStreetMap (© OpenStreetMap contributors); the EV fast charger from the US DOE station locator. Open in Google Maps ↗

The site — Big Marsh WMA

Access
Drive-up
Land
Iowa Dept. of Natural Resources · dispersed
Elevation
938 ft
State
IA
Coordinates
42.67588, -92.83513
Cost
Free

Nearby & resupply — around Big Marsh WMA · Iowa Dept. of Natural Resources · IA (OpenStreetMap)

  • Drinking waternone within 10 mi
  • FuelFuel · ~5.3 mi
  • Propane / LPGnone within 31 mi
  • Dump station~17.7 mi
  • GroceriesCasey's General Store · ~5.3 mi
  • PharmacySiech's Parkersburg Pharmacy · ~7.2 mi
  • Hospital / clinicUnityPoint Clinic Family Medicine – Parkersburg · ~7.4 mi
  • HardwareMiller's True Value Hardware Store · ~18.5 mi

EV charging — from Big Marsh WMA · Iowa Dept. of Natural Resources · IA — nearest public DC fast & Level 2 (US DOE station data)

Nearby restrooms — around Big Marsh WMA · Iowa Dept. of Natural Resources · IA — pit toilets, restrooms & rest areas (government data)

Open Big Marsh WMA elsewhere

How we know this — Big Marsh WMA

Stay limit
14 nights (14 consecutive days, unless posted)
Source
Iowa DNR (wildlife management areas)
Confidence
Likely — The record is good enough to put a pin on, but thin in places. Treat the details as a starting point, not gospel.
How it was placed
Iowa DNR public ArcGIS, Boundaries/Public_Lands/MapServer/0 (programs.iowadnr.gov), TYPE=State Wildlife Management Area, MANAGER='DNR - Wildlife', all 12 parcel(s) OWNER='DNR'; outSR=4326, fetched 2026-07-20. Coordinate = centroid (verified inside boundary) of the largest parcel, so it is inside the official boundary. Independently cross-checked against OpenStreetMap/Overpass: matched 'Big Marsh Wildlife Area' at 3.1 mi. Camping basis: Iowa Admin. Code r. 571-51.11(481A) (IAC 5/14/25, ARC 9226C, eff. 6/18/25) — primitive camping allowed on all game management areas, 14 consecutive days, unless posted; r. 571-51.2 puts all DNR land in that class. No per-area camping flag exists in the GIS, so this is a category-wide rule applied to a verified DNR-owned unit → confidence='med'. Corps/USFWS-owned units excluded on purpose. Batch 1 (top 50 by acreage) of 396 qualifying areas.
EV chargers
US DOE Alternative Fuels Data Center station locator, snapshot 2026-09-16. Straight-line miles to the nearest public, open, unrestricted station; restricted and planned units are shown but never counted.
Field check
On the agency's books. The land manager inventoried this site, so its existence is not in question — current conditions are. Nobody from here has camped it recently.

What we don’t know about Big Marsh WMA

A land record can put you within a few meters of a spot. It cannot tell you any of this — so check it yourself, and treat anything below as the open question it is.

Before you go — Big Marsh WMA

Been here? Tell us what changed. This page is built from public records, so the fastest way it gets better is somebody who has actually pulled in. Road washed out, site gone, gate locked, or it is exactly as described — all of it useful. Send a report →