Sioux Snaketail (Ophiogomphus smithi)
Photographed
one male on territory at the creek, one female in the nearby field

Dot-tailed Whiteface (Leucorrhinia intacta)
Observed
one female

Twelve-spotted Skimmer (Libellula pulchella)
Observed
one male

Widow Skimmer (Libellula luctuosa)
Observed
two females

Ebony Jewelwing (Calopteryx maculata)
Observed
many

River Jewelwing (Calopteryx aequabilis)
Observed
several

Sedge Sprite (Nehalennia irene)
Observed
one male