[The Newell]

We have friends in Rapid City, SD and travel there every summer

From Rapid go south on #79 to the junction of #18 just east of Hot Springs, (take the truck route thru HS). Go west on #18 to the junction with #85 in WY. Go south to Lusk, WY follow #18 to the junction of I-25 at Orin, WY. Go north thru Casper to the junction of bypass #26 then west to Jackson and/or Y’stone. You will have to go over 9658 ft. Togwotee pass but all in all it isn’t that bad. Thousands of RVs do it every year.

If you a haven’t been to Y’stone, remember that it is about 180 miles around the loop road. Allow a full day for each loop. In going to Grizzly Bear I would recommend that you go to West thumb then stop at Old Faithful then on to Madison Junction to the town of W. Y’stone. That way you can see part of the lower loop on the way to W. Y’stone. At O/F follow the signs, there is plenty of parking for Rv’s at O/F.

Or maybe if you are planning on also seeing Grand Teton NP there are CG’s close to the junction of #26 and 191 you could stay there and day trip it to both YNP and GTNPs.