WRITTEN BY AISLINN SARNACKI While enjoying an exciting metropolis like Portland, visiting a local park or wildlife preserve is a nice way to escape the crowds and recharge. Luckily, you don’t have to travel far to experience the beauty of wild spaces. Trails thread throughout the city, and green spaces dot the landscape. You might be surprised by how quickly you can transition from busy sidewalks to quiet, forested pathways. Here are a few pocke…