The Obsidian Series — special evening programs at Newberry National Volcanic Monument — concludes this weekend with events Friday and Saturday.

At 9 p.m. Friday, join experts from the Oregon Observatory at Sunriver (and their telescopes) for night-sky viewing. Learn about the night sky and see what the darkness reveals.

At 7:30 p.m. Saturday is “Newberry Volcano Rocks!” Join a forest ranger to discover Newberry Volcano’s interesting geologic history.

The events are held at Paul’s Place Amphitheater at the Big Obsidian Flow Day Use Area. They are free, but a recreation pass is required for the monument.

Contact: 541-383-5700.

— From staff reports