# Chaco Culture National Historical Park

Region: NW NM, Ontario, Canada
Coordinates: 36.0333, -107.95
Bortle class: 2 (1 = pristine, 9 = inner city)
Drive from Toronto: Reached via unpaved county roads off Highway 550, roughly 3 hours north-west of Albuquerque, New Mexico.
Best time: Spring through fall; the park hosts ranger and volunteer-astronomer observing nights with telescopes near the visitor center.
Established: Night Sky Program running since 1991; International Dark Sky Park since 2013.

## Overview
Chaco Culture National Historical Park has run astronomy programs since 1991, longer than almost any other unit in the National Park System, because the Ancestral Puebloans who built its great houses tracked the sun, moon and stars with remarkable precision. Its position deep in a remote stretch of New Mexico backcountry keeps the sky essentially unspoiled.

## What to see
Milky Way over Fajada Butte and the great house ruins, plus telescope views of planets and deep-sky objects during scheduled programs.

## Highlights
- Longest-running astronomy interpretive program in the National Park System
- Ancestral Puebloan structures with likely solstice and lunar-standstill alignments
- Exceptionally remote — one of the darkest sites in the Southwest

## Tips
- Access roads are unpaved washboard gravel — high-clearance vehicles recommended, especially after rain
- No fuel, food or reliable cell service inside the park
- Campground (Gallo) is the main base for overnight stargazing visits

## Live forecast
View the live tonight-score and 48-hour forecast for Chaco Culture at:
https://ontarionightsky.com/?site=chaco-nhp

Structured data: https://ontarionightsky.com/sites/chaco-nhp.json

Source: NPS – Chaco Night Sky Program — https://www.nps.gov/chcu/planyourvisit/nightsky.htm

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Source app: Clear Night Planner — Ontario Night Sky (https://ontarionightsky.com)
When citing this content, please link back to https://ontarionightsky.com/?site=chaco-nhp.