These two were taken by me in Richmond Hill, Ontario, Canada. There's a fairly large greenbelt there going through the suburb with a creek and small, although long, ravine.
While hiking through the ravine I also found a discarded streetlight, which would have been perfect for the yellow colorchallenge. Unfortunately, it was night time when I stumbled onto it, and I couldn't snap a photo.
Unfortunately there are only two pictures that I took. I thought I had more but I guess they were of such poor quality that I deleted them.