Monday, August 17, 2026

No events on this day.

Tuesday, August 18, 2026

• August 18, 2026 5:00 pm - 7:00 pm

  Tangle Free Waters: Clear the Line Cleanup @ Lake Mamie


August 18 @ 5:00 pm - 7:00 pm

Tangle Free Waters: Clear the Line Cleanup @ Lake Mamie

Join Mammoth Lakes Trails System for the next Clear the Line Cleanup at Lake Mamie. Volunteers will spend the evening removing discarded fishing line and other debris from the shoreline to help protect local lakes and wildlife. Bring your friends and pitch in to keep Mammoth's waterways tangle free. This event is co-supported by Mammoth […]

Wednesday, August 19, 2026

No events on this day.

Thursday, August 20, 2026

No events on this day.

Friday, August 21, 2026

• August 21, 2026 8:30 pm - 9:30 pm

  Stars Over Mono @ Mono Basin Scenic Area Visitor Center


August 21 @ 8:30 pm - 9:30 pm

Stars Over Mono @ Mono Basin Scenic Area Visitor Center

Explore the skies over Mono Lake and hear stories about the stars in this 1½-hour evening program. Meet on the back patio of the Mono Basin Scenic Area Visitor Center. Bring something to sit on and dress warmly. Free of charge. Programs may be cancelled due to wind, rain, or poor air quality. For information […]

Saturday, August 22, 2026

• August 22, 2026 10:00 am - 11:30 am

  Horseshoe Lake Nature Walks @ Horseshoe Lake Trailhead Kiosk
August 22 @ 10:00 am - 11:30 am

Horseshoe Lake Nature Walks @ Horseshoe Lake Trailhead Kiosk

Join Sierra Forever's education staff for a free guided nature walk around Horseshoe Lake and explore the history, ecology, and geology of the Mammoth Lakes area. The trail is a flat loop about 1.75 miles long through the forest, open to all ages — children under 16 must be accompanied by an adult. Dress in […]

• August 22, 2026 4:00 pm - 5:00 pm

  Moderate Bishop Bouldering Meetup @ The Knobs, Tuolumne Meadows


August 22 @ 4:00 pm - 5:00 pm

Moderate Bishop Bouldering Meetup @ The Knobs, Tuolumne Meadows

Join Moderate Bishop Bouldering for a group outdoor bouldering session at The Knobs in Tuolumne Meadows, meeting at the Eliminator Boulder at 4 PM. All skill levels are welcome. This is the second of two remaining Saturday summer meetups (8/8 and 8/22) before the group transitions to its regular local schedule. Bring your crash pad […]

• August 22, 2026 6:30 pm - 7:30 pm

  Campfire Talk: The Secret Lives of Black Bears @ Oh! Ridge Campground Amphitheater


August 22 @ 6:30 pm - 7:30 pm

Campfire Talk: The Secret Lives of Black Bears @ Oh! Ridge Campground Amphitheater

Black bears are one of the most iconic and misunderstood animals of the Sierra Nevada. Join Sierra Forever naturalists at the Oh! Ridge Outdoor Amphitheater in June Lake for a free campfire talk on the fascinating lives of black bears and how we can safely share the landscape with them. The talk runs from 6:30–7:30 […]

Sunday, August 23, 2026

• August 23, 2026 9:00 am - 10:00 am

  Medicine in the Mountains: A Free Plant Walk with Friends of the Inyo
August 23 @ 9:00 am - 10:00 am

Medicine in the Mountains: A Free Plant Walk with Friends of the Inyo

Join Trail Ambassador Abby for a guided hike to learn about ethical plant foraging and the edible and medicinal properties of local plants. Participants will learn how to identify plants, harvest sustainably, and explore the historical contexts of plants as food and medicine. This is a free program offered by Friends of the Inyo. Located […]