per Basin there is a platform on the right to enable one to view the pretty Keppler Cascades.
At the junction of Firehole River and Spring Creek (3J/2 miles from Upper Basin) the road leaves the Firehole, but there is a branch road to the right running three-quarters of a mile to the Lone Star Geyser, which plays for 10 minutes at intervals of 40 minutes, height 40 to 60 feet, altitude 7,600 feet. On this branch road are good camp sites, the next being 6½ miles farther up the main road at De Lacy Creek.
The first crossing of the Continental Divide, 8½ miles from Upper Basin, at an altitude of 8,240 feet, is through Craig Pass alongside of a little lily-covered lake, Isa Lake, whose waters in springtime hesitate whether to flow out one end into Pacific waters or out the other into Atlantic waters and usually compromise by going in both directions.
Then the road turns down the narrow and tortuous Corkscrew Hill to a little valley at De Lacy Creek, hemmed in by pine-covered heights on all sides. Here is the last camp
