St. John’s is a lovely neighborhood, and Cathedral Park is simply beautiful, so this week’s Segment of the Week is in that area. The Cathedral Park Trail segment has a few rollers over it’s 0.5-mile distance, which start at the end of N. Burlington Ave and then heads north on the N. Portland Willamette Greenway Trail. The trail then undulates under the St. John’s Bridge, first away from the river and then back towards it, before…