OverviewArthur's Rock is a formation of pegmatite granite that bulges out of the rolling foothills on Colorado's Front Range. Located in Lory State Park, Arthur's Rock is one of the more popular hikes near Fort Collins. It starts at an elevation of about 5,500 feet and rises to an elevation of 6,782 feet. During the ascent, you will find yourself walking through dense Ponderosa Pine forest. In a turn of a corner, grassy meadows will appear and beautiful flora will follow. During the spring and throughout the fall Lory State Park is glittered with wildflowers. Among the wildflowers a hiker can find over a hundred different species of butterflies floating around the meadows and up the hillsides. A large mass of steep, solid granite will appear without warning and may look like a daunting conundrum.
RoutesThere are three routes that will lead you to the summit of Arthur's Rock. The most popular starts at Arthur's Rock Trail. This is located at the very end of the park (the dirt road will dead-end into a parking lot). From the trailhead hike 1.7 miles to the summit. There is an elevation gain of about 1,200 feet.
The second route adds some milage. Start at Homestead Picnic Area and head up Well Gulch Nature Trail. A few hundred yards up there is a conjunction with Overlook Trail. Head south on this flat hillside for 1.9 miles until it connects with Arthur's Rock Trail (it connects at the start of Arthur's Rock Trail). The most difficult part of this option is the added distance to the summit.
A third route will take you behind Arthur's Rock (the Northwest side). Park at the group picnic area and take Timber Trail. This route will lead you to the six primitive campsites the park has to offer. Timber Trail is the hardest of the three due to being longer (3.5 miles) and also because of steep switchbacks and rocky areas.
Lory State Park has over 25 miles of trails. This map will show you all of them.