You are not allowed to get out of your car to approach bison in Yellowstone National Park — and in fact, you should stay inside your vehicle when wildlife is nearby.
Yellowstone’s safety rules require that you remain at least 25 yards (about 75 feet) away from bison at all times. This distance is the same as the rule for other large animals like elk and wolves. Bison are unpredictable, can run up to three times faster than humans, and have caused more injuries in the park than any other animal Yellowstone Tour Guides. They may charge, head-bob, or paw at you if you get too close.\
Violating wildlife‑approach rules (25 yards for bison, 100 yards for bears/wolves) is a federal offense under 36 CFR § 2.2. Penalties documented in recent cases include:
Up to $5,000 in fines and up to 6 months in jail (maximum penalty)
$1,000 fine + $1,000 community service + 4 days in jail + 1‑year park ban for approaching a grizzly too closely
$500 fine + $500 community service for disturbing a bison calf (even though the visitor thought he was “helping”)
These are not theoretical — they are real cases prosecuted in federal court.
Bison Safety Rules in Yellowstone National Park - Yellowstone Tour Guides
Not sure why there are picnic tables if the rules explicitly state do not exit your vehicle. Appears they were not the only people not in their vehicle.
The pickup looked like a park vehicle. My guess is they don't enforce the rules. At least not until someone gets injured.
Seemed more like 100 feet....victim was well past 100 yards from the bison...