I just got home an hour ago from the same H&M system keeter mentioned. Those trails would be the closest trails to you in the H&M trail system. I road through Ashland Resort too. I've been there a few times before, not as a guest, but I wanted to familiarize myself because I'm thinking that next trip I'll bring my dog. They allow dogs there except in a few of the cabins. It has always looked well kept from what I've seen. They have a little store and a dump station on site. I don't know how old your grandchildren are but my grandson's 14 and he has had no problem on these trails over the last few years, originally on a dirt bike. If they're younger than him one added bonus for you would be if you leave Ashland Resort's entrance/exit there is a trailhead (system entry point) literally right across the street. The trailhead is to a green trail which are the easier ones. You don't start off on a real steep climb there or anything like that as you do on some trailheads. That would be a bonus if the kids are less experienced.
I rode my 2014 Teryx, my son on a 2018 Artic Cat Wildcat and grandson on a 2wd Honda ATV. it rained all day Friday and off and on Sat. so the conditions were pretty wet and sloppy but we had no issue in the green and blue trails. As was mentioned already, Pocohontas, Indian Ridge, Pinnacle Creek, via a connector, can be ridden as one system. The new Warrior Trail system is not connected to these and is a good ways from them. We only road Pocahontas in Indian ridge this weekend.
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