About 10 years ago I plowed about 30 acres of my property with a Yeoman's plow. It worked great, but it also pulled up an enormous amount of rock. It was way too much for me to clean up on my own and some of the rocks were many hundreds of pounds in size, too big for me to move, so I hired a crew of 4 guys who, along with me and my tractor we cleaned all the rocks out of my pastures and into several large piles (see first picture below of my main pile), plus we used rocks from one particularly rocky pasture to build a 500 ft. long dry stack stone wall/fence line (picture). Since then, I've used these rock piles as a permaculture resource.
The rocks have been really useful for jobs such as terracing to turn sloped ground into nice, level grow beds (pictures below of nut and fruit orchards).
The property contains two seasonal creeks and one of those has a road crossing with a culvert that would clog with rock and debris during big storms. So I removed the culverts and filled the area in with rock to make a ford and held the road together on the down hill side with big rocks (see picture). I also used large rocks to make a one rock dam on that same seasonal creek and after every big storm it collects a pile of sand and leaves: another nice resource (no picture, sorry).