Mammoth Hot Springs
Here are located the famous terraces, the Mammoth Hotel, the abandoned army post of Fort Yellowstone, and the headquarters of the Park Supervisor. The terraces are near the hotel, and the tourist will have no difficulty in finding his way over them. The principal ones are Minerva, Mound, Pulpit, Jupiter, Angel, Cleopatra, and Hymen. Near the southwest end of the terraces is the Devil's Kitchen—a cave which may be visited. Another peculiar rock formation beyond the Devil's Kitchen is the mass of travertine known as the White Elephant.
Upper Geyser Basin
The Upper Geyser Basin contains more active geysers than all the other geyser regions in the world. Several days might well be spent roaming among the geysers and observing the varied phenomena.
The more important ones are listed in the table on page 439.
| Geyser | Height (feet) | Duration of eruption | Interval |
|---|---|---|---|
| Artemisia | 50 | 10 to 15 minutes | 24 to 30 hours |
| Bee Hive | 200 | 6 to 8 minutes | 3 to 5 times at 12-hour intervals following Giantess |
| Castle | 50-75 | 30 minutes | 24 to 26 hours: quiet 4 to 7 days, then plays 3 or 4 times at intervals stated |
| Cub, large | 60 | 8 minutes | With Lioness |
| Cub, small | 10-30 | 17 minutes | 2½ hours |
| Daisy | 70 | 3 minutes | 85 to 90 minutes |
| Fan | 15-25 | 10 minutes | Irregular |
| Giant | 200-250 | 60 minutes | 6 to 14 days |
| Giantess | 150-200 | 12 to 36 hours | Irregular; 5 to 40 days |
| Grand | 200 | 15 to 30 minutes | Irregular; 1 to 2 days |
| Grotto | 20-30 | Varies | 2 to 5 hours |
| Jewel | 5-20 | About 1 minute | 5 minutes |
| Lion | 50-60 | About 2 to 4 minutes | Irregular; usually 2 to 17 times a day |
| Lioness | 80-100 | About 10 minutes | Irregular |
| Mortar | 30 | 4 to 6 minutes | Irregular |
| Oblong | 20-40 | 7 minutes | 8 to 15 hours |
| Old Faithful | 120-170 | 4 minutes | 60 to 95 minutes |
| Riverside | 80-100 | 15 minutes | 6 hours |
| Sawmill | 20-35 | 1 to 3 hours | Irregular; usually 5 to 8 times a day |
| Spasmodic | 4 | 20 to 60 minutes | Irregular; usually 1 to 4 times a day |
| Turban | 20-40 | 10 minutes to 3 hours | Irregular |
The following springs are well worth a visit:—
| Black Sand Spring (about 55 by 60 feet). | |
| Chinaman. | Punch Bowl. |
| Emerald Pool. | Sponge. |
| Morning Glory. | Sunset Lake. |
Grand Cañon
The tourist would do well to spend some time at the Grand Cañon, as its wonderful beauty cannot be grasped in a short time.