With less that 10% of the US being populated… I believe that it’s real possible. We are finding at least 30 new species in the ocean every year and finding living species of supposed extinct life forms. The majority of sightings are wilderness in Oregon, Washington and northern Cali. Stretches up thru Vancouver towards the Yukon. On east coast. Maine to lower Kentucky and tenn. northern Midwest. The dakotas mich, yes they are out there.