FRS Brownfields

400 N. 3RD AVENUE

400 N. 3RD AVENUE · MILLS, NATRONA County, WY, 82644

Acreage

—

Cleanup status

BROWNFIELDS PROPERTY

Dataset

FRS Brownfields

Mapped

Yes

Redevelopment suitability

Moderate

45/ 100

Site size10/35

Acreage unknown — assumed average footprint.

Grid proximity25/40

Nearest substation ~0.8 mi away. No interconnection-queue activity nearby.

Cleanup status10/25

Status: BROWNFIELDS PROPERTY.

Heuristic estimate based on site size, grid proximity, and cleanup status — not a formal assessment.

Nearby marketplace listings

DC listing

Prime Interstate Development Opportunity / I-25 Exit 191

Casper, WY · 17 ac

0.1 mi

DC listing

257 Business Park Lot 4 | 13.88 Acres | Casper, WY

Casper, WY · 14 ac

0.7 mi

Environmental / program records

Program	Program ID	Status	Link
ACRES	268690	BROWNFIELDS PROPERTY	View

Details

Source record ID110072195725

CountyNATRONA

StateWY

ZIP82644

Coordinates42.85259, -106.39022

Geocode sourcesource

Last updated (source)1/5/2026

Grid proximity

Substations (within 25 mi)

UNKNOWN5056

115 kV

0.8 mi

UNKNOWN5829

—

1.1 mi

UNKNOWN5828

230 kV

2.1 mi

TAP

—

5.8 mi

UNKNOWN5504

—

5.8 mi

UNKNOWN5512

—

5.9 mi

UNKNOWN6863

—

7.3 mi

UNKNOWN6690

—

8.0 mi

UNKNOWN5231

—

22 mi

LATIGO

230 kV

22 mi

Interconnection queue (within 50 mi)

None within 50 mi.

Sources

FRS BrownfieldsOpen