Arches National Park is best known for its soaring red rock arches, while Canyonlands National Park is best known for its ...

SALT LAKE CITY — A common line of questions has emerged from visitors to Utah’s Arches National Park in the week since an iconic rock arch at Lake Powell known as the “Toilet Bowl” collapsed.

The rock formations are constantly vibrating, he said, and human-made energy sources such as trains, trucks and helicopters are increasing those vibrations, placing stress on the arches and ...

SALT LAKE CITY — A common line of questions has emerged from visitors to Utah’s Arches National Park in the week since an iconic rock arch at Lake Powell known as the “Toilet Bowl” collapsed.

SALT LAKE CITY — A common line of questions has emerged from visitors to Utah's Arches National Park in the week since an iconic rock arch at Lake Powell known as the “Toilet Bowl” collapsed.

SALT LAKE CITY -- A common line of questions has emerged from visitors to Utah's Arches National Park since an iconic rock arch at Lake Powell known as the Toilet Bowl collapsed. Are these arches ...

SALT LAKE CITY (AP) — A common line of questions has emerged from visitors to Utah’s Arches National Park in the week since an iconic rock arch at Lake Powell known as the “Toilet Bowl ...

SALT LAKE CITY (AP) — A common line of questions has emerged from visitors to Utah’s Arches National Park in the week since an iconic rock arch at Lake Powell known as the “Toilet Bowl ...