FORT COLLINS → DENVER → TRINIDAD / GUIDED BRANCH
Let someone show you the sky in Denver, Front Range & Pikes Peak.
Use Fort Collins / Denver / Trinidad as the launch if it fits your trip, then let Denver, with Colorado Springs for the south end become the practical base once you are in the region. These are the hosted nights connected to that road.
Getting into the region
Treat the Front Range as Colorado's long north-south urban and foothill corridor. Fort Collins belongs inside the northern edge, Denver is the central hinge, Colorado Springs and Pueblo carry the region south, and Trinidad marks the southern end before the geography changes toward the San Luis Valley and southeast plains. Archived park listings are not used as gateways or active regional stops.
Guided nights
Rather take your own road? Switch branches ↗AstroTours.org private stargazing
AstroTours.org offers mobile private telescope programs across Colorado, so a guided night may be possible near almost any stop in this guide even when there is no fixed public program there.
Secure the venue first. Private property, National Park Service sites, Tribal lands, resorts, campgrounds and other managed locations may require express permission, a commercial-use permit or authorization, or may not allow an outside private program at all. Use a place where the landowner or manager has specifically approved the tour, such as approved lodging, a campsite, an event venue or another suitable observing site nearby.
SEE PRIVATE-TOUR OPTION + PERMISSION GUIDE ↗RECURRING / Most clear nights / current booking calendarAstroTours.org Boulder Astronomy Tour
A recurring two-hour guided telescope night at the Bortle 4 Boulder Valley Ranch observing site, with an astronomer guide and laser-guided sky interpretation.
OPEN EVENT ↗RECURRING / Tuesdays and Thursdays, with occasional SaturdaysChamberlin Observatory Astronomy Nights
Denver Astronomical Society Astronomy Nights combine a multimedia astronomy presentation with weather-permitting observing through Chamberlin Observatory's historic 20-inch refractor.
OPEN EVENT ↗RECURRING / Monthly Saturday dates on the DAS calendarChamberlin Observatory Open House Star Parties
Denver Astronomical Society's monthly Open House is a free mini-star party on Chamberlin Observatory's south lawn with member telescopes and weather-permitting access to the 20-inch refractor.
OPEN EVENT ↗RECURRING / Available reservation nights through October 12, 2026Estes Park Memorial Observatory Public Observing — 2026
Estes Park Memorial Observatory is accepting 2026 stargazing reservations through October 12, with one approximately two-hour session per night and a 14-person dome limit.
OPEN EVENT ↗UPCOMING / October 3, 2026Florissant Fossil Beds Night Sky Event — October 3, 2026
The final published 2026 Florissant night-sky event brings Colorado Springs Astronomical Society telescopes and astronomers to the park visitor center on October 3.
OPEN EVENT ↗CURRENT CHECK / 2026 public nights independently verified in April, May and July; confirm the next date directlyLittle Thompson Observatory Public Star Nights
Little Thompson Observatory's public-star-night program continued in 2026. Denver Astronomical Society independently listed public nights on April 17, May 15 and July 17; the next date should still be confirmed directly because LTO's own reservation page contains stale 2025 text.
OPEN EVENT ↗Check once more before the drive
Back to Denver, Front Range & Pikes Peak ↗Programs change faster than landscapes. Open the organizer link on the event page for the current date, weather call and booking details.