Grassy Mountain Rest Area Westbound – I-80
On I-80 westbound in Utah, Grassy Mountain Rest Area offers a place to stop. Reported truck parking: 17 spaces. The next westbound stop is Salt Flats Rest Area – Westbound, 45 mi ahead by the mile markers.
Next rest stop on I-80 Westbound
Salt Flats Rest Area – Westbound45 mi ahead by the mile markers · Utah · Mile marker 10Previous westbound stop: Jeremy Ranch Rest Area – Westbound · 91 mi back by the mile markers
Location map
Marker shows recorded coordinates, not an entrance or approved driving route. Follow highway signs.
Open directionsReported parking capacity
Reported capacity from the 2019 federal truck parking survey (FHWA Jason's Law). This is not real-time vacancy information.
Facilities and amenities
Unknown (not documented in the sources): Family restroom, Accessible facilities, Picnic tables, Pet area, Vending machines, Public phone, RV dump station, Wi-Fi.
A reported facility does not guarantee current availability.
About this rest area
Drivers heading west on I-80 in Utah can take a break at the Grassy Mountain Rest Area. Whether it is open right now has not been confirmed. Check the Utah Department of Transportation again before stopping: operating conditions can change.
Location and driving direction
The rest area sits on the westbound side of I-80. The recorded position is around mile marker 55.
Do not confuse it with the separate eastbound facility, Grassy Mountain Rest Area – Eastbound, on the other side of the highway.
Further along I-80, Salt Flats Rest Area – Westbound follows after roughly 45 miles.
Parking and amenities
Truck parking: 17 reported spaces (the 2019 federal truck parking survey (FHWA Jason's Law)).
According to the available records, you will find:
- Restrooms
- Drinking water
- EV charging
These are capacity figures, not a live count of free spaces. Individual facilities can be closed temporarily.
Time limits and overnight parking
Utah sets no hour limit: extended stays are permitted, but overnight camping is not. Always follow the limit posted on site. Source: UDOT (checked November 2026).
Map and coordinates
Recorded coordinates: 40.762357, -113.010375. For safe navigation, follow official road signs and make sure the approach matches your direction of travel.
Frequently asked questions
Is this rest area on I-80 Westbound?
Yes. The federal truck parking inventory record identifies it as the westbound facility on Interstate 80. The eastbound lanes have a separate facility.
How many truck spaces are there?
The 2019 federal truck parking survey (FHWA Jason's Law) lists 17 truck parking spaces at this facility. This does not indicate how many are currently free.
Are there restrooms and drinking water?
Yes, both are included in the official amenities listing. Check current conditions before travel.
Can I stay overnight at this rest area?
Utah sets no hour limit: extended stays are permitted, but overnight camping is not. Posted signs on site apply.
What is the next stop on I-80?
Salt Flats Rest Area – Westbound, about 45 miles further along I-80 by the official mile markers.