The Twins Loop run

The full loop is often started from the Charlton Lake Trailhead. This is a common access point for the extended route.

No, this is a challenging trail. With significant elevation gain, steep sections, and varied terrain including pumice and exposed rock, it's generally considered difficult and best suited for experienced trail runners looking for a strenuous workout.

The trail begins with a gradual ascent through mountain hemlock and lodgepole pine forests. As you climb, it becomes steeper, with the last half-mile to the summit involving a scramble through pumice soils, exposed rock, and boulders. The tread changes from dirt to crumbly cinder, making it quite demanding.

From the twin summits, you'll get expansive views of the Waldo Lake area, the Three Sisters, Diamond Peak, Mount Bachelor, Broken Top, and even Mount Thielsen and Mount Jefferson on a clear day. The trail also traverses beautiful mountain hemlock forests and open meadows. You'll also pass by Charlton Lake.

Yes, the route crosses the Pacific Crest National Scenic Trail (PCT). You'll also find sections of the Oregon Timber Trail, The Twins Trail #19.1, and Charlton Trail #19.

Yes, dogs are allowed on this trail. Please ensure they are kept on a leash and that you pack out any waste.

The trail is accessible from late June to mid-November. Late August, September, and October are often recommended for fewer bugs and clearer views of snow-dusted peaks. Wildflowers bloom in early July, and huckleberries can be found in early August.

Depending on the time of year and specific access points, a Central Cascades Wilderness Permit may be required for day use in certain areas of the Deschutes National Forest. It's best to check the official USDA Forest Service website for the most current permit requirements before your visit.

The final half-mile to the summits involves a steep scramble over loose pumice and rock, which can be very challenging for jogging. Most runners will find themselves power walking or hiking this section. Be prepared for this demanding push and consider bringing poles for stability on the descent. Mosquitoes can also be present, especially in August, so come prepared with repellent.

Given the trail's difficulty and varied terrain, it's advisable to bring plenty of water, appropriate trail running shoes with good grip, layers of clothing for changing weather conditions, sun protection, and a map or GPS device. Trekking poles can be helpful for the steep, rocky sections.

There are no official restrooms or reliable water sources directly on the trail itself. It's crucial to carry all the water you'll need for the entire run. Plan to use facilities at the trailhead if available, or practice Leave No Trace principles.