Trackway I recently discovered during riparian habitat volunteer work. See earlier observation here:

https://www.inaturalist.org/observations/39872766

Last photo taken weeks later indicates why trackway has not been described previously. Most of the time algae and bacteria load=turbidity obscure rock bottom of creek. I believe there are other, larger prints in the creek bed, but can no longer tell due to visibility. Am hoping recent rains have washed out algae off bottom.

See:

https://www.inaturalist.org/journal/billarbon/33375-april-2020-status-report-on-riparian-restoration-and-alien-species-management-a-year-s-effort-reviewed