Few Vernal listings have a schedule or SNAP authorization we could source. Salt Lake City, 124 miles away, has 23 listings with more sourced detail; see also all of Utah.
Vernal at a glance
Types
Farm stand / on-farm market 3 · Farmers market or farm stand (SNAP list) 2
Ashley Valley Farmers Market, Boot Hill Farm 1 are authorized SNAP retailers in the USDA register. Ask at the information table how EBT tokens work at that market.