United States https://www.flickr.com/photos/cogdog/ · CC BY 2.0
The cut
355 metres, to scale.
A slice through Romero Canyon 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
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. On one side the ground was still rising 12 km out: the true rim is further away and the canyon deeper.
355m
Depth
measured on the 30 m relief model
20.0km
Rim to rim
measured on the 30 m relief model
36°
Steepest wall
average over 300 m, from the relief
821m
Floor altitude
Rim to floor
8 °C warmer at the bottom.
In June the afternoon reaches 39 °C on the floor, against 30 °C on the rim. The best months to hike are in March and in November. The floor passes 35 °C from June to August: walk at dawn and carry water. The rim freezes at night from December to February. The wettest months are from July to August.
- 17°9°Jan
- 19°10°Feb
- 23°15°Mar
- 28°19°Apr
- 33°24°May
- 39°30°Jun
- 37°29°Jul
- 36°28°Aug
- 34°26°Sep
- 29°21°Oct
- 22°14°Nov
- 17°8°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.
Located in the Santa Catalina Mountains
Romero Canyon is a canyon in United States, cut by the Sutherland Wash river. The relief model measures 355 m from the floor to the lower rim, and 1,300 m to the higher one. Rim to rim it is 20 km wide where the cut was taken.
Getting there.
- Catalinanearest town · 8.7 km in a straight line
- Parking 70 m awaynearest car park in OpenStreetMap, straight line
- Viewpointsnearest viewpoint · 1.6 km from the floor
- Tucson International Airport (TUS)nearest airport with scheduled flights · 36 km in a straight lineCar hire at TUS airport (Tucson)Discover Cars · sponsored link↗
- In March and in Novemberbest 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.
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.
- 1viewpoints within 5 km
- 10car parks within 3 km
- 2information boards and visitor centres within 4 km
- 4campsites within 8 kmCatalina State Park: Loop B, Catalina State Park: Loop A, Catalina State Park: Ringtail Loop and 1 more
- 24hotels and guesthouses within 8 kmFairfield Inn & Suites Tucson North/Oro Valley, Hunt Family Home, Catalina Inn and 21 more
- 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
- bus stops within 2 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
- Catalina8.7 km in a straight line
- Oro Valley8.7 km in a straight line
- Saddlebrooke12 km in a straight line
- Tortolita12 km in a straight line
- Catalina Foothills15 km in a straight line
- Casas Adobes16 km in a straight line
- Flowing Wells19 km in a straight line
- Oracle23 km in a straight line
In our other atlases
What else is around Romero Canyon.
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.
Peakyas14 mountains within 15 kmFigures 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 | 17 | 19 | 23 | 28 | 33 | 39 | 37 | 36 | 34 | 29 | 22 | 17 |
| Afternoon · rim | 9 | 10 | 15 | 19 | 24 | 30 | 29 | 28 | 26 | 21 | 14 | 8 |
| Night · rim | -5 | -4 | -1 | 3 | 8 | 14 | 16 | 15 | 12 | 6 | 0 | -5 |
| Rain (mm) | 28 | 25 | 16 | 8 | 5 | 8 | 65 | 54 | 34 | 16 | 16 | 28 |
| Rainy days | 4 | 5 | 4 | 2 | 2 | 2 | 14 | 16 | 7 | 4 | 3 | 5 |
| Sun hours/day | 7.9 | 8.7 | 10.4 | 12.2 | 13.3 | 13.4 | 10.2 | 9.9 | 9.8 | 9.9 | 8.7 | 7.7 |
| Snow on the ground (cm) | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 17 | 9 | -5 | 28 | 7.9 |
| Feb | 19 | 10 | -4 | 25 | 8.7 |
| Mar | 23 | 15 | -1 | 16 | 10.4 |
| Apr | 28 | 19 | 3 | 8 | 12.2 |
| May | 33 | 24 | 8 | 5 | 13.3 |
| Jun | 39 | 30 | 14 | 8 | 13.4 |
| Jul | 37 | 29 | 16 | 65 | 10.2 |
| Aug | 36 | 28 | 15 | 54 | 9.9 |
| Sep | 34 | 26 | 12 | 34 | 9.8 |
| Oct | 29 | 21 | 6 | 16 | 9.9 |
| Nov | 22 | 14 | 0 | 16 | 8.7 |
| Dec | 17 | 8 | -5 | 28 | 7.7 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (821 m) and the rim (2,121 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 | 66% | 124% | 230% | 21% | — | 16% | 39% | 45% | 12% | 12% | 33% | 39% |
| 2021 | 88% | 3% | 78% | 50% | — | 52% | 249% | 199% | 104% | 50% | 7% | 186% |
| 2022 | 40% | 25% | 66% | 0% | — | 312% | 160% | 246% | 112% | 220% | 24% | 213% |
| 2023 | 220% | 109% | 141% | 0% | — | 0% | 41% | 64% | 59% | 46% | 75% | 131% |
| 2024 | 142% | 220% | 278% | 100% | — | 280% | 79% | 97% | 34% | 6% | 100% | 0% |
| 2025 | 12% | 9% | 132% | 14% | — | 176% | 200% | 189% | 145% | 322% | 211% | 27% |
130% or more: wet month 70% or less: dry month
Compare with the neighbours.
Romero Canyon
United States
- 355 mDepth
- 20 kmRim to rim
- —Length
- 36°Steepest wall
Where these figures come from
| Name, type, published depth and length | Wikidata (Q7363158) · CC0 |
|---|---|
| The cut: depth, width, wall and 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| 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.
beaches
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lakes
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Every summit in 3D: summit weather, the 0 °C line, huts and trails.Visit 
waterfalls
Every waterfall: height, flow month by month and when it roars.Coming soonVisit 
islands
Every island from the sea up: size, sea temperature, ferries and 3D.Visit 
rivers
Every river from source to sea: the journey, the flow and the basin in numbers.Visit 
canyons
Every canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.You are here