My son and daughter-in-law accompanied my husband and me (both in our 60s) in April for what we thought was going to be a really fun experience. We planned to ride from South Plains to Turkey the first day (32 miles), spend the night at the Turkey Hotel, and on from Turkey to Estelline the next day for the last 32 miles of the trail. As they say - "best laid plans" and all that! We did start out on our mountain bikes at South Plains, and after 2 miles of constant pounding over clumps of grass & weeds, large rocks and what seemed like riding through a freshly plowed field, I couldn't take any more. The others said they could handle it, but either my bike didn't fit my "contours" or I have been totally spoiled by riding my recumbent bike! I turned back and pushed my bike back to the truck, which was not exactly easy over that terrain and against the 10-15 mph wind! Later, they told me that after another 1/2 mile or so, the trail DID get a little better, and there was actually a fairly flat surface to ride on. That's okay - I don't think I could have taken that 1/2 mile further and then continued to ride! I drove the truck to Monk's Crossing and met them there. Unfortunately, I missed going thru the tunnel, but they got video of it, so I feel like I was there. The trail from Monk's Crossing to the Clarity Tunnel is great, with what looked like a caliche base with a very fine gravel surface. Even a road bike could handle that without a problem. However, that is the only section of the trail that is maintained like that - the rest is the red cinder bed with some areas with larger rocks, and that first 2 miles is a killer! My husband joined me in the truck at Monk's Crossing, but the two "youngsters" in our group rode on 5 more miles to the Quitaque Depot. When they arrived there, we were waiting for them, wondering if they had run into many goathead stickers, as we could see quite a few of them at the trailhead. When they pulled in, they had 4 or 5 in each tire, but since we had put heavy duty slime tubes in, they sealed off when we pulled them out. Our son decided to take a "test run" on the next section, which would have been another 9 miles on into Turkey. He went about 1/4 mile, turned around and came back shaking his head. His tires were absolutely COVERED in goatheads! Even those slime tubes couldn't hold up to that many. Thus ended our trail ride, and it was a good thing I had turned around at the beginning and we had the truck available. Otherwise, we would have been calling Albert at the Turkey Hotel to come and get us!! While we had a lot of fun on our trip, and staying at the Turkey Hotel was a very unique and enjoyable experience, it is really a shame that the drastic budget cuts to the Parks & Wildlife budget have resulted in little or no maintenance to this trail. If the entire trail could be more like the 4.5 miles from Monk's Crossing to the Tunnel, a lot more people would come back to ride the trail again and again. The rangers at the State Park told us that the trail from Turkey to Estelline was not maintained at all, and they would recommend that NO ONE attempt it, but we felt sure we could at least make it to Turkey. Even with our heavy duty slime tubes, when that many goatheads are embedded in a tire, they don't stand a chance! Hopefully, other trails have not been affected as badly as this one has, as we would love to experience some of them. But we will definitely be checking them out closely before we commit to another disappointing ride.