We live not far from the entrance to the George Mitchell Nature Preserve, which is part of the Spring Creek Greenway that extends across and between Montgomery and Harris counties. I have only been to the Fitness Trail Loop, which is a 1.5 mile trail starting not very far from the trailhead on Flintridge Road. I generally go in the early mornings, so it is very quiet and peaceful and you hardly run into anyone. The trail itself is a little uneven in places and also quite sandy, which is probably good for strengthening the ankles. However, be on the watchout for roots sticking out of the ground that can trip you. Always keep your sight on the trail and what you are stepping on. There is a nice Bedias Lake detour along this loop. If you venture to go on the longer trail (which I plan to do once the weather cools down a little), you will rewarded with a lot more scenic views of the nature preserve. One final thought; try to stay in the center of the trail as there are a lot of spider webs along the sides, especially in the morning. All in all, it is a great place to hike, walk, or run!