The trail along Castle Creek to Horse Heaven Meadow follows the snow covered Castle Creek Road as it bends and winds through the canyon and follows and crosses the creek. Although the trail is lined by a forest of pines, as the trail gains elevation there are still several picturesque views of Castle Crags, Grey Rocks, and Flume Creek Ridge all dusted with snow. You'll cross a second bridge over Castle Creek and continue following the road as it makes a few more bends just before reaching Horse Heaven Meadow. Contact Shasta-Trinity National Forest for up to date weather conditions and road closure dates for Castle Creek Road. This hike is recommended to be done an overnight trip, but could be done as an all day hike. Snowmobilers commonly use the area as well.