Mystery Picture Saturday--guess where we are to win some notecards

Last week's Mystery Picture was taken at Oakridge Prairie, a county park in Lake County Indiana. This is a magnificent park to visit first thing in the morning. It's a great stop for a short hike before tackling the work day world.

I can't decide which season makes Oakridge shine the best. I guess they are all my favorite seasons at Oakridge:

This week's mystery picture is fairly easy; so no clue is necessary. Leave your guess in the comments. If it's correct we'll throw your name in the first day of spring notecard drawing: