Otters in Wyoming: where to look and what signs to watch for

Your best bets are the Green River drainage, the Snake River near Jackson, and Yellowstone National Park. Otters favor rivers with healthy fish populations and dense bankside cover like willows and undercut banks. In Yellowstone, check the Yellowstone River near Fishing Bridge and the Lamar River. Outside the park, the Wind River Range has smaller populations. Start with these areas and scan for disturbance on the water or muddy banks.

In Wyoming, otters sightings usually improve when you slow down and match your first stop to where the animal is most likely in the state. Use the state wildlife hub and the route guide to narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

Otters are crepuscular, so dawn and dusk offer the best odds. However, they can be active any time of day, especially in spring when raising young. In winter, they may be more visible on snow or ice, hunting under ice. If you find a latrine or slide, stake it out quietly near sunrise or sunset for the highest chance.

Otter tracks are about 2-3 inches wide with five toes and show webbing between the toes (though not always visible). Look for a tail drag mark between prints. Scat (latrines) is often placed on prominent rocks or logs near water, containing fish bones and scales. Slides are slick, muddy patches on banks where otters enter the water. In winter, look for otter trails in snow that lead from water to water.

See our state animal guide for the next step.

Spring (April-May) is often best because otters are more active after ice melt and young are being raised. Fall can also be good as fish runs concentrate food. Summer may be harder due to dense vegetation. Winter offers unique tracking opportunities in snow, but otters remain active year-round. Focus on early morning hours regardless of season.

Otters are present but not common in Yellowstone. They are seen by careful observers along the Yellowstone River, especially near the Upper and Lower Falls, and in Yellowstone Lake. The Lamar Valley also has occasional sightings. They are secretive, so don't expect a quick sighting. Patience and scanning for movement on the water are key.