Just off of Highway 18, near McMinnville, there is a 90 ton rock, the Bellevue Erratic.
Erratic rocks are rocks that do not match the minerals in their area.
https://en.wikipedia.org/wiki/Glacial_erratic
In this case, it is banded argillite from the Northern Rockies, carried here by the Missoula Flood.
This particular erratic is between two private properties, but there is a clearly-marked path.
The shoulder across from the path has room for about five cars. It seems to get frequent visitors, though no one stays for that long.
It is only about half a mile to the rock, though it is a little steep.
You feel gravity on the way up and on the way down.
There is a picnic table at the top -- a place to catch your breath, perhaps -- but the only signage is at the start of the path.
Still, there is quite a view.
There are larger erratics, but this one is ours, and a reminder of the geological forces that created the area.
COVID: It is all outdoors, and though you might meet other people (and dogs) along the way, the meetings tend to be transient.
Accessibility: There is a paved path, all the way to the top and then circling the rock. However, it is pretty steep.
Also, while the path is maintained (we encountered a park ranger clearing the path of the newly trimmed grass), there are some potholes and roots going through and things. Combined with the steepness, there is some risk of falls. Use good judgment.
Well, let me clarify. I have seen it called a gentle hill and an easy hike. The estimate is that the slope exceeds an 8% grade for most of the hike, but part of that estimate is that it starts out milder and then gets harder in the last 100 meters.
The park ranger called it a tough hill, but he may have just been being nice. He did not drive away until I made it back down. Possibly a coincidence; possibly avoiding later complications.
Speaking of maintenance -- and dogs -- there is no garbage collection on the trail, so make sure that you pack out anything that gets up there because of you.
https://stateparks.oregon.gov/index.cfm?do=park.profile&parkId=96