(click map to open very large locator map - this section is gold)
South Entrance Road | ||
| 0.0 |  The entrance sign welcomes you to Yellowstone National Park. |
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| 0.2 | The road passes through the entrance station here. The park entrance fee must be paid or a valid pass shown. |
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| 0.3 | The road passes by the Snake River Picnic Area. |
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| 1.4 |  The road passes by a small parking area for Moose Falls. A short walk leads to a good view of this 30 foot waterfall on Crawfish Creek. |
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| 8.4 | A very small parking area for the Pitchstone Trailhead is on the left. This is a starting point for long hikes into an extremely remote and wild area of the park. |
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| 10.2 |  The road goes by a small parking area for Lewis Falls. There is a good roadside view of this 30 foot waterfall on the Lewis River. |
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| 11.5 |  On the left is the side road to the Lewis Lake Campground, as well as a boat dock and picnic area. |
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| 14.4 | The road passes by the parking area for the Heart Lake Trailhead. This is a long hike, usually done as an overnight trip, to the enormous 2,160 acre Heart Lake. Thermal features can also be seen along the way. |
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| 17.6 | The road goes by the parking area for the Riddle Lake Trailhead. This is an easy hike of a little over two miles to 274 acre Riddle Lake. This area is frequently closed for bear management. |
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| 17.7 | The road crosses the Continental Divide at an elevation on 7,988 feet. |
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| 20.0 |  To the right is the side road to Grant Village. Most services are available here, including lodging, camping, dining, and a service station. |
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| 21.8 | The road arrives at West Thumb Junction. A left turn joins the Grand Loop Road on the West Thumb to Old Faithful section. A right turn enters the Fishing Bridge to West Thumb section. |
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