# City of Rocks National Reserve

Region: Southern ID, Ontario, Canada
Coordinates: 42.0764, -113.7147
Bortle class: 2 (1 = pristine, 9 = inner city)
Drive from Toronto: Near Almo, Idaho, close to the Utah border — about 2.5 hours south of Twin Falls, Idaho, mostly on paved roads with a final gravel stretch.
Best time: Late spring through fall for comfortable camping conditions; the granite formations make for dramatic astrophotography foregrounds any clear, moonless night.
Established: National Reserve established 1988; certified an International Dark Sky Park in 2023.

## Overview
City of Rocks is a granite-spire wilderness on the Utah–Idaho border, famous with rock climbers by day and, since gaining official Dark Sky Park certification in 2023, increasingly known for its night skies too. There's no electricity in the reserve and very little light anywhere nearby, so the Milky Way looks much as it did to travelers on the historic California Trail that once passed through.

## What to see
Full Milky Way arch framed by granite spires, plus excellent views of planets and constellations thanks to the reserve's high desert elevation and clean air.

## Highlights
- Certified International Dark Sky Park (2023)
- Iconic granite rock formations along the historic California Trail
- No electricity anywhere in the reserve keeps skylight glow to a minimum

## Tips
- Book a campsite ahead in peak climbing/camping season (spring and fall)
- No cell service inside the reserve — download maps in advance
- Combine a night of stargazing with a day of hiking or climbing among the spires

## Live forecast
View the live tonight-score and 48-hour forecast for City of Rocks at:
https://ontarionightsky.com/?site=city-of-rocks-nr

Structured data: https://ontarionightsky.com/sites/city-of-rocks-nr.json

Source: National Park Service — City of Rocks National Reserve, Dark Sky certification — https://www.nps.gov/ciro/learn/news/darksky.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=city-of-rocks-nr.