Misleading signs for Mt Arvon

We visited Mt Arvon on May 31, 2018. The blue signs were very helpful for finding our way through the maze of back roads. However, on the outside of a left turn about 2 miles short of the summit there are some misleading signs. "Mt Arvon Hiking Trail 1-3/4 miles," "Trailhead Parking" & "Follow Blue" (with a blue diamond & a straight arrow pointing up a lesser side road.) Do not follow this side road. Stay on the obviously more maintained road that turns left. There apparently is some sort of overgrown tick gauntlet they are passing off as a hiking trail, but we didn't see it. We did hike over a mile back this 4WD rough, puddle saturated side road before deciding it couldn't be right. Then with several tick passengers and directions from a chance encounter, we drove the rest of the way to the summit parking lot. The correct road was passable in a Dodge Caliber, but some places were mud rutted and required a lot of care. I wouldn't want to try those same stretches when the mud was soft. It would be great if a clarification arrow were added to this group of signs to indicate the correct direction for driving.