Tucked deep in the Okanogan-Wenatchee National Forest, Ivanhoe Lake is accessible via the Middle Fork Snoqualmie River Trail from the west or the Pacific Crest Trail and Dutch Miller Gap from the east side.
Set in bluffs and beautiful meadows, Lake Ivanhoe is a nice destination, but a difficult one to access. It's more than 14 miles from the Cathedral Pass or the Waptus River trailhead to the junction with the Pacific Crest Trail, and then another 3.8 to the lake's outlet. The data for this hike is given from the Waptus River trail starting at the Salmon Le Sac trailhead.
A bridge 3.5 miles from the intersection of the Pacific Crest Trail has collapsed and made the trail past this point inaccessible to stock. There are no campfires allowed within half a mile of Lake Ivanhoe, and only two campsite options at the lake. There are a couple more sites available in the valley just before you arrive at the lake.
If you do decide to camp here please be aware of Leave No Trace principles and ensure you are camped on rock or dirt, not grass or flowers.