Undaunted, I drove to Delta and beyond to the quarry and had a great time. It took almost three hours to get there from Orem, Utah. I didn't take the best route or didn't travel at maximum speed. I could see it, but I thought I might be in for a long walk. My first advice is to fill your gas tank and your belly every chance you get.
Gas stations are few and far between.
Expect very high gas prices, too. This is rural Utah. In places, cattle roam the range and there's no fence next to the road. You may not see many other cars. The 20-mile last leg of the trip to the quarry is gravel road.