This trip begins by turning off US-20 at mile #51 in Waltman. As you head south toward the Rattlesnake Hills on the Gas Hills Road (N-212), you can see Pine Mountain to the east and Lysite Mountain to the north. After crossing Sand Draw (one mile), the road swings southwest and begins following the South Fork Powder River. About 13 miles from Waltman, you pass Wild Horse Butte (about three miles off to the east) and cross the river.
Take the pavement into the Coal Hills and after passing through Hoff Gap you can see Maverick Butte off to the far west. The road then travels south for three miles to a junction where the pavement ends. Here you can take the Poison Spider Road (N-201) east to Casper (see page 66).
Turn west on the Gas Hills Road (N-212). The road swings around the northwestern edge of the Rattlesnake Range to Deer Creek (three miles). A half-mile west of Deer Creek is another junction (22 miles from US-20). Here you can take the Gas Hills Road west to the Castle Garden/Ore Road and W-136 (see page 66 and page 69).
Turn south on the Dry Creek Road (N-321) and you follow along Deer Creek for a couple of miles and cross Holiday Creek. The road then climbs along the southern edge of the Rattlesnake Range for the next three miles. Along here you can now see French Rocks to the east.
After crossing the creek again, the road leaves the Deer Creek drainage and drops over the other side to Dry Creek. About five miles further south, you pass by Bald Mountain and behind it is Goat Mountain. The road leaves the creek and travels along a divide for about three miles to a junction. Here the Beaver Rim Road (BLM-2401) turns southwest toward Barlow Gap.
Stay to the southeast and after three miles the road rejoins Dry Creek as it flows south away from the Rattlesnake Hills. Along here you can see the Green Mountains, above the peaks of the Granite Mountains, to the southwest.
The road follows along Dry Creek for a couple of miles and then crosses it. The road swings around the base of one of the exposed peaks of the Granite Mountains at Roberts Draw. (Most of the Granite Mountains reside underground. They were originally formed during the Laramie Uplift, then later buried with tertiary fill, and have now been exposed due to erosion.) You then travel southeast for the next eight miles to W-220 at mile #67. Here you can see the Granite Mountains to the west. To the southwest is Devil's Gate, Independence Rock and the Ferris Mountains. To the near south are the Sentinel Rocks and to the far south are the Pedro Mountains. To the southeast is Steamboat Rock and Steamboat Lake.