Hike Bald Mountain Trail this past August and you hit orange fencing about a third of the way up, a detour onto the Olympic Lane cat track, and no clear sign of who put the fencing there. Was it the resort? The city? Both? For most of the summer, the honest answer was both, and untangling which closure belonged to which project is the only way to know what actually reopens this winter and what was always meant to be temporary.
Sun Valley Resort spent 2026 replacing two lifts on Bald Mountain. At the same time, and on some of the same dirt, the City of Ketchum was building an entirely new trail connecting Bald Mountain Trail to Warm Springs. Two separate projects, run by two separate entities, both landed on the same stretch of mountain in the same construction season. Locals who ski or hike Baldy every year deserve to know which closure ends when the lifts start spinning and which one is a permanent rerouting of how you get around the mountain from now on.
The Lift Project: Faster, Not New Terrain
Sun Valley is replacing the Lookout Express and the Christmas lift for the 2026-27 season, both built by Doppelmayr, the manufacturer that has built every detachable lift at the resort since 1992. Lookout Express goes from a detachable quad to a high-speed six-person chair, a change that increases how many people the lift moves per hour rather than opening new ground. The new lift climbs 2,673 vertical feet with an estimated ride time of about eight and a half minutes.
The more interesting swap is Christmas. Unlike Lookout, Christmas was already a high-speed lift. Replacing a lift that wasn't the bottleneck tells you the resort is solving for something other than an aging chair. Lookout and Christmas work as a pair, both serving the route up to the Lookout Restaurant and the top of Bald Mountain, and the resort's stated goal is matching capacity and reliability between the two so one lift isn't waiting on the other during a busy morning. The new Christmas lift covers 1,354 vertical feet in roughly four and a half minutes, and both lifts run at speeds up to 1,000 feet per minute.
| Lift | Previous type | New type | Vertical rise | Estimated ride time |
|---|---|---|---|---|
| Lookout Express | Detachable quad | High-speed six-person chair | 2,673 ft | ~8.5 minutes |
| Christmas | Already high-speed quad | New high-speed detachable quad | 1,354 ft | ~4.5 minutes |
Sun Valley Resort's Bald Mountain page cites a SKI Magazine ranking naming the resort number one in North America for lifts, and this project is the piece that keeps that claim current rather than the piece that earned it in the first place. COO Pete Sonntag has described the goal in terms of keeping the lift system the most efficient in the country, and the two lifts replaced this year finish a run that started well before 2026.
The Four-Year Pattern Locals Have Been Living Through
If you've skied Baldy for the past several seasons, you've watched this happen in pieces without necessarily seeing the whole shape of it. For winter 2023-24, the resort upgraded both Challenger and Flying Squirrel on the Warm Springs side, paired with a terrain expansion. For winter 2025-26, Seattle Ridge became a detachable six-person lift, a change the resort says increased uphill capacity by 20 percent. This year's Lookout and Christmas replacements are the next entry in that same sequence, following the same manufacturer and the same stated logic of capacity and reliability over new terrain.
Put those three seasons together and Sun Valley has now rebuilt or replaced the lift equipment on nearly every major route to the summit of Bald Mountain within about four years. That's the part that doesn't show up in any single season's press release. The story isn't "new lift this year." It's that this year is the one that closes out a project the resort has been running continuously since 2023, and the two lifts that finish it happen to be the ones that also feed the mountain's most popular hiking and biking corridor.
What Was Actually Closed, and For How Long
Because Christmas serves the top of Baldy, replacing it meant lift-served access to the summit was unavailable to hikers, bikers, and sightseers for the entire summer of 2026. Two specific trails, Saddle Up and Lupine, were closed for the season rather than intermittently. Lookout Lodge itself was closed as well, with no restrooms or potable water inside, though the resort kept portable facilities available near the site.
Separately, the Scenic Overlook route off Bald Mountain Trail carried its own short-term closure listed for August through September 2026, tied directly to the construction happening in that stretch. That window matters if you're reading this in September: it means the overlook segment was scheduled to reopen right around now, distinct from the lift equipment itself, which the resort is targeting for full operation by the start of the 2026-27 winter season.
The Ketchum city project added a third and separate disruption. Because the city was building its new Warm Springs Connector Trail through the lower section of Bald Mountain Trail, that stretch saw a one-day full mountain closure this year, with no access down to the overlook or to the base of the run known as Frenchman's while crews worked. Idaho Mountain Express reported that alternate routes were available but shifted daily depending on where construction stood that morning, which is exactly the kind of week-to-week uncertainty that made it hard to tell, from the trailhead, whether you were looking at a lift closure or a trail closure.
What the Connector Trail Actually Changes, Permanently
The Warm Springs Connector Trail is the piece that outlasts this construction season. Once finished, it links Bald Mountain Trail directly to the Warm Springs area of Ketchum and the Warm Springs Preserve, giving residents a foot and bike route between the two sides of the mountain that didn't exist in this form before. That's a different kind of change than a faster chairlift. A lift upgrade changes your ride time in December. A new connector trail changes which trailhead you park at and which direction you approach the mountain from, for as long as the trail exists.
For anyone who has always started at River Run because that was the only reasonable way onto Bald Mountain Trail, the connector gives a second, formal entry point from the Warm Springs side. That's worth knowing before the snow flies, because once the mountain reopens for skiing, the summer trail network goes quiet until next June, and the first real test of the new connector won't come until then.
Reading Opening Day Against Last Year
Sun Valley's season pass structure for 2026-27 treats December 11, 2026 as the boundary between early season access and the resort's full mid-winter period, which lines up with the resort's typical late November to early December opening window. Last season is the useful comparison. Sun Valley Resort had planned to open on Thanksgiving Day for 2025-26 but pushed the opening to Wednesday, December 3, after warm, dry weather across the West delayed snowmaking, the first holiday delay in more than 15 years according to the resort. Nothing about this year's lift construction changes that weather math. The two new lifts are a separate variable from snowfall, and the resort's own construction timeline points to April through late summer for the physical build, which puts the equipment on track regardless of how early or late the mountain opens.
What that means in practice: locals should expect the same kind of season-opening uncertainty they saw last year, tied to snow rather than to construction. The lift replacements are the fixed part of the equation. The resort's own terrain updates page is the place to check as opening day approaches, both for confirmation that Lookout and Christmas are running and for any lingering trail impacts from the city's connector project.
The Practical Read
Two different organizations spent the same summer digging into the same mountain, for two different reasons that happen to serve the same skiers and hikers. The resort's project is about speed and capacity on equipment that was already there. The city's project is about a new route that wasn't there before. One resolves the moment the lifts start turning this winter. The other changes how residents move around Baldy for years to come, starting with next summer's first real season of use.
If you're weighing a move that puts you closer to this kind of mountain access, or thinking about what a home near Warm Springs or River Run is actually worth once a new trail connection is part of the picture, Erika Rixon has spent nearly two decades watching how projects like this one reshape the way people live in Ketchum. Let's Connect.