The Grove boulders are a collection of granite rocks that lie in a large group of aspen trees. When our group visited, we could tell that the boulders were not climbed regularly, but many of them had a lot of potential. Very vague descriptions of these boulders can be found in Bob Horan's Bouldering Colorado. This would also be a great place to throw up a tent as there are many existing fire pits right off the road. Also, one wouldn't have to pay for a campsite or car permit. As we explored the area, there was obviously a lot of FA potential. The landings are generally very good and some of the boulders high, so a pad would be very useful. If you want to drive right up to these boulders, 4-wheel drive is necessary.
Coming from Woodland Park on US 24, go through the small town of Lake George. Take a left at CR 92 (The sign on US 24 reads "Elevenmile State Parks"). This roads winds through the canyon for about 11 miles to the ranger station. There are many small dirt side roads, but just stay on the pavement. You will pass the ranger's station on your right and continue for about another mile. You will then see a sign for CR 335. Take a right on 335 and continue up that dirt road for about 0.65 miles. You will then see an unmarked dirt 4x4 path on the right. Take that path over a rough ridge. Once you reach the top of the small ridge, there will be a 4 way split. Veer right in the road and continue downhill (you should see a brown post with an arrow pointing down the road). From there, you see a barbed wire fence line on your right. From CR 335, it should only be 0.8 mile to the boulders. If you do not have 4-wheel drive, it would be possible to park right off the dirt road and do a short approach hike in.
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Mountain Project's determination of some of the classic, most popular, highest rated routes for Grove Boulders:
Featured Route For Grove Boulders
Stupid Partyers V2 CO : South Platte : ... : Fence Boulder
This is a newer line on the boulder that is on the west face. Sit start low on a single good handhold, then move up to the well- chalked sloper. Move left hand to a good pinch and stretch to an unobvious crimp about halfway up then top out. Kurt and I cleaned come serious choss off this problem....[more] Browse More Classics in CO