Entry No. 62 — the Boulder file — filed under: after-dark

Little Thompson Observatory Public Star Night

Tucked on the grounds of Berthoud High School, this volunteer-run observatory throws open its dome on the third Friday of every month for a free public star night. A guest speaker kicks things off at 7:30, then the real draw comes out: observing through a 24-inch Newtonian, an 18-inch Cassegrain and a 6-inch Astro-Physics refractor until about 10 p.m. No reservations needed, and the whole evening is free.

The move: Catch the 7:30 astronomy talk together, then step into the dome and peer through the big 24-inch telescope at whatever deep-sky object the volunteers have lined up.

📍 Before you go Third Friday of each month, weather permitting; doors 7 p.m., talk 7:30, observing 7-10. Free, no reservation. About 25 miles north of Boulder.

• 📍 Berthoud
• 💸 $
• ⚡ Low-key
• 🌗 Outdoors

Where: 850 Spartan Ave, Berthoud, CO 80513

Hours: Added 2026-06-23 — confirm current hours before you go.

⚠ Seasonal or scheduled — always check before you go.

Plan a visit & invite your people →

Proof: source 1 · source 2 · source 3 · source 4

last checked: 2026-06-23