There are many trail systems around Henderson. The Union Pacific Railroad Trail is a very nice for bikers, runners, walkers and of course fur babies. It follows along side I-215 going east and then running along the tracks. It is widely paved with sporadic lighting along the way. For our doggie friends, there are waste cans and bags available in various spots.
Part of the trail that we used, we weren't treated to much shade. During the summer months it could be pretty brutal. Id probably only recommend it when it cools down a bit.
Happy Trails To You!