B323 is the dark nebula to right of the bottom center in the image. The somewhat darker nebula to the left is cataloged as TGU H299 P2.
B324 is the looping dark nebula to the left of the center of the image.
Luminance – 18x600s – 180 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
300 minutes total exposure – 5 hours
Imaged from Dardenne Prairie, Missouri (a red zone) on June 9th, 10th and 11th, 2016 with a SBIG ST-8300M on an Astro-Tech AT90DT at f/6.7 603mm
LRGB - https://www.flickr.com/photos/dcrowson/30583672484/sizes/l