Traveled, in July 2015
Foy...looks like you have either lived in, or traveled this part of the country....you hit the nail on the head. It's hard to remember some of these little details as you burn up the miles
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In late July 2015, the wife and I drove our old Superduty towing our camper from Philipsburg, MT to Anaconda, over the Divide on MT 569, to MT 43, to Wise River for the beginning of the Pioneer Mountains Scenic Byway, to MT 278, past Bannack to MT 324, the entire Big Sheep Creek Backcountry Byway to Dell, MT, and then the entire Centennial Valley, through Lakeview, to Elk Lake Lodge for a very fine overnight with the wonderful proprietors and other guests of the Lodge. You will recall our route from Wise River to Red Rock Pass and on to Island Park was exactly as yours was following the CDT Moto and Cycle route. Next morning our plan to hang around the lake and have a late start southward from Henry's Lake was precluded by the approach of a huge squall line from the west, so we "got outta Dodge" PDQ. We'll definitely be going back.
By the way, the whole of the road from Monida through Lakeview and on through Red Rock Pass was a stagecoach route from the railroad at Monida to West Yellowstone, MT, and was the principal route used by Yellowstone NP's early visitors. Lakeview was a stagecoach station.
The Big Sheep Creek route and traversing the Centennial Valley were very much two of the three high points of our trip, the third being Atlantic City, WY to Sweetwater Junction on BLM Road 2302, paralleling the Mormon/Oregon Trail for 35 miles. We have spent much time in Montana, specifically the Pioneer Mountains and the Big Hole, including Lemhi Pass, Bannack, and other locales, over the last 38 years. I enjoyed 7 weeks of Field Methods (aka Field Camp) at the U of Montana's Geology Dept Field Station in Dillon, MT in 1978 and have returned many times since then.
Looking forward to the balance of your TR!
Foy