June 19, 2021 — Marathon County

Marathon County, WI ;(southwestern portion of Marathon County);(in SW 1/4 of section 17 in McMillan Township). McMillan Marsh State Wildlife Area ; (0.3 miles north-northwest from Marsh Road public parking area). Little Eau Pleine River (I recorded images from east side of river while walking along river bank on a wildlife runway.

Horned Clubtail (Arigomphus cornutus)
Confirmed as male Horned Clubtail (Arigomphus cornutus) through Dan Jackson ("Midwest Odonata" FB page).
Photo of Horned Clubtail