It seems possible that there may have been in this region some great lake which lifted the waters up to the top of the ridge to begin their work of corrasion.

Such lakes did exist; but lack of space forbids the further pursuit of this discussion here.
* The character of the Grand River is similar to that of the Green, but the canyons above the mouth of the Dolores are not so long nor so deep.

The river also carries less water.
Brown's Park, originally called Brown's Hole, after one of the early trappers, is a fine valley about 35 miles long and 5 or 6 miles wide.

It is, like the few other valleys, an expansion of the canyon walls.
There is considerable arable land, and the place possesses a remarkable climate.

Though its general level is so high, around 5500 feet, it receives hardly any snow, and for this reason was long a favourite place for wintering cattle on the drive from Texas to California.