Various loops can be ridden, with varying difficulty. More details can be found at:
A map can be found at:
This will include a more comprehensive gpx file and trail map. I've included the gpx we took and the map as an image here.
We road up the east side of Buzzard's loop trail, which was quite rocky at the bottom, but smoothed somewhat as we went up. This trail system is quite rocky. Then we took the "green" trail, along the top. Then back down North Buzzard, with a loop out Therapist and then down the bottom of Jack's. Then finished on the bottom of North Buzzard. While North Buzzard is technically mild, sections to climb pretty steep. The trails are rated from green to "red", which is defined as "severe". Didn't ride any of those.
We cut the ride a bit short, due to the rocky nature. We felt pretty beat up doing the 4 miles or so we road.
As the other website says, this is typical of trails in this area; quite rocky.
Likely wouldn't go out of our way to ride it again.