The fossils at John Day span 40 million years and offer one of the richest evolutionary records of the Cenozoic Era, including prehistoric alligators, bears, dogs, pigs, horses, cougars and even ...

and Oregon’s John Day Fossil Beds National Monument. Removing nonrenewable resources affects other park units, too, from Hawaii Volcanoes, where hikers pocket basalt lava rocks, to White Sands, where ...

The fort became a national monument in 1924. According to recent ... The fort is open every day (except Thanksgiving and Christmas Day) between 9 a.m. and 5 p.m. Admission for adults 16 and ...

Oregon is home to multiple national monuments, including the John Day Fossil Beds and the Cascade-Siskiyou National Monument — the latter of which then-President Barack Obama expanded in 2017 ...