I really loved backpacking the Strawberry Wilderness. We spent the weekend making our way to the summit, stopping for a night at Strawberry lake and a couple nights at Little Strawberry. There was an insane amount of wildlife while we were there! Our favorite were the mountain goats you could see from Little Strawberry. I strongly suggest waiting until late summer as the mosquitoes are bad bad until mid August. The way up to the summit had fantastic views of the Wilderness. The trail turns into shale rock once you meet up with the Onion creek trail. It's fairly loose the higher you get on your way to the summit. But it's worth it!
I completed the Onion creek trail in late August 2013. The trail is Brutal. Steep, rocky, and very narrow. I used Onion Creek to complete the loop to Strawberry Mountain and then through the meadow to strawberry lake. Overall it was a 2 day backpacking trip that covered approx 12.5 miles. The views from onion creek down to prairie city and John Day are spectacular. This is a trail that I'm glad I did, but most likely will never attempt again. The open meadow about half way up has plenty of trail markers as there really isn't a trail in this are. Please be warned that its a true butt burner and your knees will be pissed at you when your finished.