USFWS · National wildlife refuge · Illinois, Missouri

Middle Mississippi River National Wildlife Refuge

The Middle Mississippi River National Wildlife Refuge is located on the Mississippi River downstream from St. Louis, Missouri. It is managed by the U.S. Fish and Wildlife Service as part of the Mark Twain National Wildlife Refuge Complex.

From Wikipedia, licensed CC BY-SA 4.0.

National Wildlife Refuge8,511 acresUSFWSILMO
Official page at U.S. Fish and Wildlife Service ↗
4fires
active
Greenbriar Cdef Rx (prescribed burn) · 34 mi from the center · 265 acres
3 more within 50 miles
Incident details ↓

Facts

Where each comes from ↓
DesignationNational Wildlife Refuge
Managed byU.S. Fish and Wildlife Service
StatesIllinois, Missouri
Size8,511 acres (computed from the boundary polygon)
FWS regionRegion 3
Center point37.8423, -89.7186
Night skyAbout as dark as the ground gets (Black Marble reading 17)

Boundary map

15 outlines

Boundary, simplified to about 0.005 degrees

The outline is the agency boundary simplified for display, so small parcels and inholdings may not show. The agency page has the authoritative map.

Fire nearby

Within 50 miles · as of 2026-09-17
  • Prescribed
    Greenbriar Cdef Rx

    34 mi from the center point · 265 acres

  • Prescribed
    Propeller Point Rx

    34 mi from the center point · 367 acres

  • Prescribed
    Green Briar C And F Rx

    34 mi from the center point · 260 acres

  • Prescribed
    Propeller Point Rx

    35 mi from the center point · 53 acres

Distance is to the reported incident point, not the fire edge, and is measured from the center of a boundary that may be many miles across. Check the agency page for closures.

Explore

Nearby on the other atlases

National Park System units within 30 miles · Park Atlas
National Historical Park · 1 mi
Ste. Geneviève National Historical Park
National Historic Site · 18 mi
Ulysses S Grant National Historic Site
National Park · 25 mi
Gateway Arch National Park
National Register listings within 15 miles · 38 in all · Register Atlas

Landmarks are listed first, then by distance from the boundary.

Reference

Questions people ask

How big is Middle Mississippi River National Wildlife Refuge?

8,511 acres, measured from the published boundary polygon. The agency’s own figure can differ where the boundary includes water or inholdings.

Source: How acreage is computed

Who manages Middle Mississippi River National Wildlife Refuge?

The U.S. Fish and Wildlife Service.

Source: U.S. Fish and Wildlife Service

What state is Middle Mississippi River National Wildlife Refuge in?

The boundary crosses Illinois and Missouri.

Source: How states are assigned

How do I get to Middle Mississippi River National Wildlife Refuge?

A point inside the boundary is at 37.842, -89.719. Ste. Geneviève National Historical Park is 1 miles away. The official page carries directions and the office address.

Source: U.S. Fish and Wildlife Service

Is there a fire near Middle Mississippi River National Wildlife Refuge right now?

4 active incidents within 50 miles as of 2026-09-17, the nearest Greenbriar Cdef Rx at 34 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Middle Mississippi River National Wildlife Refuge?

NASA’s Black Marble night-lights image reads 17 on a 0 to 255 scale at the center point, about as dark as the ground gets.

Source: NASA Black Marble

Which national parks are near Middle Mississippi River National Wildlife Refuge?

Ste. Geneviève National Historical Park (1 mi), Ulysses S Grant National Historic Site (18 mi) and Gateway Arch National Park (25 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near Middle Mississippi River National Wildlife Refuge?

38 National Register listings within 15 miles, including Bolduc, Louis, House and Ste. Genevieve Historic District.

Source: Register Atlas

Sources

  • Boundary, name: the U.S. Fish and Wildlife Service refuge boundary layer.
  • States: computed by intersecting the boundary with Census state polygons; a state is listed when it holds at least one percent of the area.
  • Acreage: geodesic area of the published polygon. The agency’s official acreage can differ where the boundary includes water, easements or inholdings.
  • Description: Middle Mississippi River National Wildlife Refuge on Wikipedia, CC BY-SA 4.0. The article was accepted because its title contains this unit’s name.
  • Campgrounds: the Campsite Atlas index of federal campgrounds, matched to this boundary at build time.
  • Night sky: NASA Black Marble (VIIRS, 2016 composite) sampled at zoom 6 around the center point.
  • Weather, alerts, air quality, river flow and earthquakes load live in your browser from NWS, AirNow, USGS and iNaturalist when you open the page.