To find Whispering Pines, you need to know how to get to Ft Gibson Lake. East of Wagoner on HW 51, look for Western Hills/Sequoya State Park. There are around 7 miles of trails here--some single track, some double track. There are several small loops, and string them all together (which is a little complicated) and you will end up with a good run. I recommend a dip in the lake (at least during the summer), and if you are a golfer, there is an awesome 18 hole course here.
I have not ran here in five years, but will be back soon--and will post some pictures.
Click here for a mountain bike website which has a good trail map.