congrats on both the land and up coming grand kid
if I was you I would be renting out the pasture land, and taking that money to be had there
it will do many things for you, from adding a lot of food for your wildlife on the property, tyo maintaining the land with boost in what farmer add to the soil to grow things with higher yields for them, to make $$
it will also keep the pastures from growing up into maybe something you don;t want
that grand kid(or more down the road)
won;t be driving any ATV 's for many yrs, so why have to up keep it , to stay open for them, you can always STOP renting when ever you wish, if you do yr to yr rentals!
as again, having a farmer work the land, saves you a lot of seat time and wear and tear on your equipment, and a lot of your money to keep the area open and well maintained
odds are renal of good AG land wioll bring a good penny in the yrs to come as well, as I doubt anything is getting cheaper and as prices climb on all things, so will what rentals costs and $$ you can get from them!