When I stopped at Bentonville last year I was only able to ride for one day (rained the second day), so I did a "sampling loop" on my regular bike (Spot Ryve 115):
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That ride would have definitely been more fun on an e-bike. Especially the various trails off the Castle Hub where I only did a couple of runs. Unfortunately, I didn't get to any of the Bella Vista trails at all. Next for sure.
The start/stop location was the hotel I was staying at. The little trail loop just to the NE was actually a lot of fun and not really like any other trails I rode there. Basically hand-cut natural single track. It didn't look like it was ridden very much.