Hardin Rest Area Westbound – I-90

Hardin Rest Area is a rest area on I-90 westbound near Pompey Pillar in Big Horn County, Montana. Reported truck parking: 13 spaces. The next westbound stop is Columbus Rest Area – Westbound, 56 mi ahead by the mile markers.

I-90MontanaWestbound
Current operating status not verified — Location data comes from an inventory record. Confirm with the responsible transportation agency before travel.

Next rest stop on I-90 Westbound

Columbus Rest Area – Westbound56 mi ahead by the mile markers · Montana · Mile marker 419

Previous westbound stop: Fifth Street Rest Area – Westbound · about 85 mi back (straight line)

Location map

Marker shows recorded coordinates, not an entrance or approved driving route. Follow highway signs.

Open directions

Reported parking capacity

Truck parking13Reported spaces

Reported capacity from the 2019 federal truck parking survey (FHWA Jason's Law). This is not real-time vacancy information.

Facilities and amenities

✓ Restrooms

Unknown (not documented in the sources): Family restroom, Accessible facilities, Drinking water, Picnic tables, Pet area, Vending machines, Public phone, RV dump station.

A reported facility does not guarantee current availability.

About this rest area

On Interstate 90 westbound near Pompey Pillar, the Hardin Rest Area gives travelers in Montana a place to stop. Its current operating status has not been verified. Confirm the current situation with the Montana Department of Transportation before you plan a break here.

Location and driving direction

The rest area sits on the westbound side of I-90 near Pompey Pillar in Big Horn County. It is listed near mile marker 475.

Do not confuse it with the separate eastbound facility, Hardin Rest Area – Eastbound, on the other side of the highway.

The next westbound stop is Columbus Rest Area – Westbound, about 56 miles further along I-90.

Parking and amenities

The 2019 federal truck parking survey (FHWA Jason's Law) lists 13 truck parking spaces.

According to the available records, you will find:

  • Restrooms

Space counts describe reported capacity, not live parking availability. Availability of individual amenities can change.

Time limits and overnight parking

Montana allows overnight parking at rest areas for up to 12 hours, one space per vehicle; camping is prohibited. Posted signs at this rest area can set a different limit. Source: Montana DOT (checked November 2026).

Map and coordinates

Recorded coordinates: 45.782359, -108.002777. Use them as a reference only; follow the posted signs to the entrance.

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Frequently asked questions

Which side of I-90 is this rest area on?

It serves westbound traffic on Interstate 90 near Pompey Pillar. The eastbound lanes have a separate facility.

How many truck spaces are there?

The 2019 federal truck parking survey (FHWA Jason's Law) lists 13 truck parking spaces at this facility. This does not indicate how many are currently free.

Are there restrooms?

Yes, restrooms are included in the official amenities listing. Check current conditions before travel.

Can I stay overnight at this rest area?

Montana allows overnight parking at rest areas for up to 12 hours, one space per vehicle; camping is prohibited. Posted signs on site apply.

What is the next stop on I-90?

Columbus Rest Area – Westbound, about 56 miles further along I-90 by the official mile markers.