USFWS · National wildlife refuge · Arizona

Buenos Aires National Wildlife Refuge

Buenos Aires National Wildlife Refuge provides 117,107 acres (47,392 ha) of habitat for threatened and endangered plants and animals. This refuge, in Pima County, Arizona, was established in 1985.

From Wikipedia, licensed CC BY-SA 4.0.

Official page at U.S. Fish and Wildlife Service ↗
DesignationNational Wildlife Refuge
Managed byU.S. Fish and Wildlife Service
StateArizona
Size117,677 acres (computed from the boundary polygon)
FWS regionRegion 2
Center point31.6403, -111.4593
Night skyVery dark ground, a faint glow at most (Black Marble reading 25)

Boundary map

5 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
    Nogales Piles Rx

    45 mi from the center point · 101 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 Register listings within 15 miles · 6 in all · Register Atlas

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

Reference

Questions people ask

How big is Buenos Aires National Wildlife Refuge?

117,677 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 Buenos Aires National Wildlife Refuge?

The U.S. Fish and Wildlife Service.

Source: U.S. Fish and Wildlife Service

What state is Buenos Aires National Wildlife Refuge in?

Arizona.

Source: How states are assigned

How do I get to Buenos Aires National Wildlife Refuge?

A point inside the boundary is at 31.640, -111.459. Tumacácori National Historical Park is 13 miles away. The official page carries directions and the office address.

Source: U.S. Fish and Wildlife Service

Is there a fire near Buenos Aires National Wildlife Refuge right now?

1 active incident within 50 miles as of 2026-09-17, the nearest Nogales Piles Rx at 45 miles. Distance is to the reported incident point, not the fire edge.

Source: Fire nearby

How dark is the night sky at Buenos Aires National Wildlife Refuge?

NASA’s Black Marble night-lights image reads 25 on a 0 to 255 scale at the center point, very dark ground, a faint glow at most.

Source: NASA Black Marble

Which national parks are near Buenos Aires National Wildlife Refuge?

Tumacácori National Historical Park (13 mi). Park Atlas has fees, hours and alerts for each.

Source: Nearby on the other atlases

Are there historic places near Buenos Aires National Wildlife Refuge?

6 National Register listings within 15 miles, including Tumacacori Museum and U.s. Inspection Station--Sasabe, Arizona.

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: Buenos Aires 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.