Wilderness Mount Jefferson, located in the state of Oregon, offers visitors a breathtaking natural experience with its diverse landscapes, unique points of interest, and fascinating history. Here is a summary of the area, including reasons to visit, key attractions, interesting facts, and the best time of year to plan your visit, verified across multiple independent sources.

Reasons to Visit:
1. Scenic Beauty: Wilderness Mount Jefferson is known for its stunning natural beauty, offering picturesque vistas, lush forests, alpine meadows, and cascading waterfalls. The area is a paradise for outdoor enthusiasts, photographers, and nature lovers.
2. Hiking and Backpacking: The wilderness area provides an extensive trail system, allowing visitors to explore its diverse terrain. From challenging hikes to leisurely strolls, there are options catering to all skill levels. Trails such as the Pacific Crest Trail and Jefferson Park Loop offer spectacular views.
3. Wildlife Viewing: The area is home to a variety of wildlife, including black bears, deer, elk, beavers, and numerous bird species. Wildlife enthusiasts will have ample opportunities to observe and appreciate these animals in their natural habitat.

Points of Interest:
1. Mount Jefferson: Standing at 10,497 feet (3,199 meters), Mount Jefferson is the crown jewel of the wilderness area. It is an active stratovolcano and the second highest peak in Oregon. The mountain's rugged beauty and glaciers are a sight to behold.
2. Jefferson Park: Located on the western side of Mount Jefferson, Jefferson Park is a popular destination within the wilderness area. It features alpine meadows, serene lakes, and wildflower displays during the summer months. The park is a great spot for camping, fishing, and photography.
3. Pamelia Lake: Situated at the base of Mount Jefferson, Pamelia Lake is a serene and picturesque destination. The lake offers opportunities for fishing, swimming, and canoeing, surrounded by the beautiful old-growth forest.

Interesting Facts:
1. Mount Jefferson Wilderness was designated as a protected wilderness area in 1968 and encompasses approximately 111,177 acres (449.81 square kilometers).
2. The wilderness area features over 190 miles (305 kilometers) of trails, providing ample opportunities for exploration and adventure.
3. The area's volcanic activity has left a unique geological imprint, with lava flows, cinder cones, and pumice fields making up parts of the landscape.

Best Time to Visit:
The best time to visit Wilderness Mount Jefferson is typically from early July to September. This period offers the most favorable weather conditions for hiking and outdoor activities, with warmer temperatures and less chance of snow. However, it is important to note that due to the high elevation, snow can linger on some trails well into the summer months. It is advisable to check weather and trail conditions before planning your trip.

Sources:
- U.S. Forest Service - Willamette National Forest: https://www.fs.usda.gov/recarea/willamette/recarea/?recid=4301
- AllTrails: https://www.alltrails.com/parks/us/oregon/mount-jefferson-wilderness
- Travel Oregon: https://traveloregon.com/things-to-do/outdoor-recreation/hiking-backpacking/mount-jefferson/
- Outdoor Project: https://www.outdoorproject.com/united-states/oregon/mount-jefferson-wilderness
- SummitPost: https://www.summitpost.org/mount-jefferson/150243