Observatory Dome is the next major rock uphill and slightly west of the Pear (apart from the obscure and lower Sunshine Buttress), so named because of the huge, right-facing dihedral located smack dab in the middle of its rounded south face, lending a striking resemblance to its namesake. It's one of Lumpy's least-climbed crags, due in part to its steep bushwhacking approach and lack of routes, quality or otherwise. As of Bernard Gillett's 2001 guidebook (currently the most up-to-date) there were only four routes gracing its rough, slabby, lichen-covered walls, and I haven't heard of anyone scheming for a first ascent lately. Despite this, it might not be a bad place to go if you're looking for a 5.6 or 5.7 on a busy day (when ISN'T White Whale or Chrome-Plated busy?). You're guaranteed to have it all to yourself, even on a July weekend.
Take the trail to the base of the Pear and bushwhack uphill and to the left until you find the base. Use the prominent, central dihedral as a landmark for finding most of the routes. The main descent is to the west, but you can descend east as well.
With confirmation with RMNP, this rock is not subject to raptor closures.
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Mountain Project's determination of some of the classic, most popular, highest rated routes for Observatory Dome:
Ryan's Song 5.10 Trad, TR, 1 pitch, 60 feet
Featured Route For Observatory Dome
Ryan's Song 5.10 CO : Lumpy Ridge : Observatory Dome
This route is named in memory of Ryan Keller (son of a good friend), who died much too young in a tragic car accident a few years back. This route is aesthetic, elegant, inspiring, but it ends far too quickly. It took a while to find an appropriate route to name in his honor. The rock is still a bit raw and gritty. Nonetheless, it inspired a second, lengthy approach up to climb it.With rain and hail pressing, a toprope ascent was all Mother Nature allowed us. It could be led, but it would b...[more] Browse More Classics in CO