Female Epiaeschna heros
This one caught me off-guard while I was looking for perched Epitheca princeps. She was hanging from a branch under the canopy of a tree, maybe 2-2.5 meters high, that was further under the canopy of trees between 10-15 meters or so. A very shaded area next to one of the more "marshy" ponds at the park.
Before I could get a lateral shot she poofed, leaving me even more captivated.
Aesthetically I'm not a huge fan of these shots but they are ample for identification purposes and still represent some of the beauty and elegance of the "Swamp Darner".