Ben, your post reminds me of a turtle rescue my son and I accomplished when he was about 10-

It was right before one of his soccer games, and he had announced that our upstairs neighbor had found a turtle and put it in the creek at a park near our house. I started asking questions and found out that the turtle had been found in the vacant lot next door, and she had taken it blocks away and placed it in the water! We flew out of the house, as I explained to my son that not all turtles live in water, and if he was found in a field, that's where he needed to be! (How can people be so ingnorant?) We got to the park and started searching for where he had been dropped in the water. It had been raining heavily and the creek was swollen and rushing. I didn't think there was any hope, but my son wanted to keep looking. Luckily, he had his soccer cleats on (after all, we had been on the way to his game) so he was able to climb up and down the muddy banks. Just as we were about to give up, my son spotted him, clinging to a piece of wood close to the bank. We got him and returned him to his tree in the vacant lot where he had been found.

I don't know what kind of turtle he was, but he looked like Logan's. Now that I know he may have been missing his home as well as having almost drowned, I'm glad my son missed his game that day to rescue the little guy!