Mexico / United States Ravine
The Californias
586 m of rock, cut by the Rio Verde.
Unknown author Unknown author · Public domain
The cut
586 metres, to scale.
A slice through The Californias where it is deepest and narrowest, measured on the Copernicus relief model every 30 m. Same scale as the landmark standing on the floor.
Standing on the floor, to scale: Great Pyramid · 139 m · Empire State · 443 m
Depth is measured to the lower rim; the width is from rim to rim. A 30 m relief model smooths the narrowest walls, so a slot canyon reads shallower than it is.
586m
Depth
measured on the 30 m relief model
15.7km
Rim to rim
measured on the 30 m relief model
26°
Steepest wall
average over 300 m, from the relief
760m
Floor altitude
Rim to floor
4 °C warmer at the bottom.
In May the afternoon reaches 36 °C on the floor, against 31 °C on the rim. The best months to hike are from November to January. The floor passes 35 °C from April to May: walk at dawn and carry water. The wettest months are from June to September.
- 26°22°Jan
- 29°25°Feb
- 32°28°Mar
- 36°31°Apr
- 36°31°May
- 33°29°Jun
- 31°27°Jul
- 31°27°Aug
- 29°25°Sep
- 29°24°Oct
- 27°23°Nov
- 26°22°Dec
Afternoon highs, 1991–2020 averages (NASA POWER) brought to the altitude of the rim and of the floor with the standard lapse rate (6.5 °C per 1 000 m). Shade, wind and rock change this on the day. Not a forecast.
Region of western North America
The Californias is a ravine in Mexico, cut by the Rio Verde. The relief model measures 586 m from the floor to the lower rim. Rim to rim it is 16 km wide where the cut was taken.
Getting there.
- San Ciro de Acostanearest town · 8.6 km in a straight line
- Querétaro Intercontinental Airport (QRO)nearest airport with scheduled flights · 129 km in a straight lineCar hire at QRO airport (Querétaro)Discover Cars · sponsored link↗
- From November to Januarybest months to hike (estimate)
Plan the visit
Guided hikes, a bed nearby, a car.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The river
The Rio Verde runs highest from August to October.
The Rio Verde carries about 8.1 m³/s on average here. It runs highest from August to October. It is lowest from December to May.
- 1.3 m³/sJan
- 1.1 m³/sFeb
- 1.3 m³/sMar
- 1.3 m³/sApr
- 2.6 m³/sMay
- 9.6 m³/sJun
- 18 m³/sJul
- 21 m³/sAug
- 27 m³/sSep
- 21 m³/sOct
- 14 m³/sNov
- 4.4 m³/sDec
From about 1.1 m³/s in the lowest month to 27 m³/s in the highest. Its basin above this point covers 6,928 km².
Estimate: long-term flow from the HydroATLAS model (WaterGAP, 1971–2000) shaped by the monthly rain, snow and temperature of the area (NASA POWER). Dams change it. Not a forecast.
From the sky.
The canyon from above, with the relief shaded, the line of the cut, the river and what people have mapped around it.
N
6 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 24 × 24 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- viewpoints within 5 km
- marked hiking routes within 4 km
- via ferrata routes within 4 km
- climbing crags within 3 km
- footbridges and suspension bridges within 3 km
- rafting, canoe, kayak or canyoning spots within 4 km
- swimming spots within 3 km
- named waterfalls within 4 km
- caves within 3 km
- car parks within 3 km
- information boards and visitor centres within 4 km
- bus stops within 2 km
- campsites within 8 km
- hotels and guesthouses within 8 km
- restaurants and cafés within 4 km
Counted in OpenStreetMap, the map anyone can edit, around the floor of the canyon. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).
Towns nearby
- San Ciro de Acosta8.6 km in a straight line
- San José del Tapanco15 km in a straight line
- Rayón20 km in a straight line
- Arroyo Seco21 km in a straight line
In our other atlases
What else is around The Californias.
The river that carved it, the waterfalls inside it, the mountains on the rim, the lakes, beaches and island nearby — from our six sister atlases, each with its own figures.
Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.
Month by month
The weather, at the floor and at the rim.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon · floor | 26 | 29 | 32 | 36 | 36 | 33 | 31 | 31 | 29 | 29 | 27 | 26 |
| Afternoon · rim | 22 | 25 | 28 | 31 | 31 | 29 | 27 | 27 | 25 | 24 | 23 | 22 |
| Night · rim | 7 | 9 | 11 | 14 | 16 | 16 | 16 | 16 | 15 | 13 | 10 | 8 |
| Rain (mm) | 14 | 16 | 18 | 19 | 44 | 102 | 122 | 97 | 136 | 68 | 22 | 9 |
| Rainy days | 3 | 2 | 4 | 5 | 10 | 16 | 18 | 17 | 19 | 11 | 5 | 2 |
| Sun hours/day | 6.2 | 7.1 | 8.0 | 8.5 | 8.3 | 8.2 | 7.7 | 8.0 | 6.3 | 6.6 | 6.4 | 6.6 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 26 | 22 | 7 | 14 | 6.2 |
| Feb | 29 | 25 | 9 | 16 | 7.1 |
| Mar | 32 | 28 | 11 | 18 | 8.0 |
| Apr | 36 | 31 | 14 | 19 | 8.5 |
| May | 36 | 31 | 16 | 44 | 8.3 |
| Jun | 33 | 29 | 16 | 102 | 8.2 |
| Jul | 31 | 27 | 16 | 122 | 7.7 |
| Aug | 31 | 27 | 16 | 97 | 8.0 |
| Sep | 29 | 25 | 15 | 136 | 6.3 |
| Oct | 29 | 24 | 13 | 68 | 6.6 |
| Nov | 27 | 23 | 10 | 22 | 6.4 |
| Dec | 26 | 22 | 8 | 9 | 6.6 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (760 m) and the rim (1,403 m) with the standard lapse rate. Not a forecast.
Photographs
Seen from the trail.



Recent years
Wet years, dry years.
Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 206% | 50% | 86% | 158% | 113% | 60% | 62% | 61% | 86% | 50% | 109% | 7% |
| 2021 | 80% | 31% | 39% | 84% | 137% | 139% | 95% | 126% | 89% | 108% | 70% | 53% |
| 2022 | 57% | 63% | 5% | 119% | 15% | 69% | 35% | 64% | 124% | 42% | 166% | 168% |
| 2023 | 22% | 26% | 53% | 334% | 170% | 22% | 33% | 54% | 6% | 97% | 119% | 395% |
| 2024 | 30% | 78% | 17% | 39% | 13% | 261% | 183% | 36% | 82% | 41% | 22% | 338% |
| 2025 | 59% | 45% | 7% | 5% | 132% | 190% | 94% | 66% | 109% | 152% | 47% | 285% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Where these figures come from
| Name, type, published depth and length | Wikidata (Q301467) · CC0 |
|---|---|
| The cut: depth, width, wall and 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| River flow and basin | HydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0 |
| Climate | NASA POWER, 1991–2020 |
| Viewpoints, trails, bridges and the river line | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Rivers, waterfalls, mountains, lakes, beaches and islands nearby | Coastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas |
Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.
The family
Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?
Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.



