गिबि फोरमानारि दावबायनायखौ खालामदों सासे जथाय हादरनि नोगोरारि आरो बिगुर फालांगिरि जन कलटारा , जाय लिविस आरो क्लार्क संदान्नायाव मन्टानाखौ बारलांदोंमोन , बेबायदिनो 1807 माइथायाव इयेलस्टन हादरखौ दिहुन्नो फैफिनदोंमोन ।
The first documented visit was by a U S citizen and fur trapper John Colter who passed through Montana with the Lewis and Clark expedition then returned to explore the Yellowstone country in 1807 .