United States Canyon
Rattlesnake Canyon
236 m of rock, cut by the Bull Canyon.
Pretzelpaws at English Wikipedia · CC BY-SA 3.0
The cut
236 metres, to scale.
A slice through Rattlesnake 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.
236m
Depth
measured on the 30 m relief model
3.6km
Rim to rim
measured on the 30 m relief model
16°
Steepest wall
average over 300 m, from the relief
1,342m
Floor altitude
Rim to floor
2 °C warmer at the bottom.
In July the afternoon reaches 37 °C on the floor, against 34 °C on the rim. The best months to hike are in April and in October. The floor passes 35 °C in July: walk at dawn and carry water. The rim freezes at night from December to February.
- 6°4°Jan
- 8°6°Feb
- 14°12°Mar
- 19°17°Apr
- 26°24°May
- 34°32°Jun
- 37°34°Jul
- 34°32°Aug
- 29°27°Sep
- 20°18°Oct
- 13°10°Nov
- 6°4°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.
Lies within the Black Ridge Canyons Wilderness and is noted for its natural arches
Rattlesnake Canyon is a canyon in United States, cut by the Bull Canyon river. The relief model measures 236 m from the floor to the lower rim, and 317 m to the higher one. Rim to rim it is 3.6 km wide where the cut was taken. It lies within Black Ridge Canyons Wilderness.
Getting there.
- Lomanearest town · 5.4 km in a straight line
- Viewpointsnearest viewpoint · 2.8 km from the floor
- Grand Junction Regional Airport (GJT)nearest airport with scheduled flights · 29 km in a straight lineCar hire at GJT airport (Grand Junction)Discover Cars · sponsored link↗
- In April and in Octoberbest 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 Bull Canyon runs highest from March to May.
The Bull Canyon carries about 206 m³/s on average here. It runs highest from March to May, fed by melting snow. It is lowest in August.
- 229 m³/sJan
- 407 m³/sFeb
- 602 m³/sMar
- 659 m³/sApr
- 561 m³/sMay
- 279 m³/sJun
- 113 m³/sJul
- 60 m³/sAug
- 173 m³/sSep
- 270 m³/sOct
- 201 m³/sNov
- 164 m³/sDec
From about 60 m³/s in the lowest month to 659 m³/s in the highest. Its basin above this point covers 44,811 km².
Follow the Colorado River from source to mouth on Riveryas
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
2 km
Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 8 × 8 km, north up. The line is the cut above. Points © OpenStreetMap contributors.
Around the canyon.
- 2viewpoints within 5 km
- 1marked hiking routes within 4 kmADT - Colorado C - Q - Seg 6
- 6car parks within 3 km
- 3information boards and visitor centres within 4 km
- 15campsites within 8 kmBull Draw, Rattlesnake, Beaver Tail 1 and 12 more
- 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
- 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
- Loma5.4 km in a straight line
- Fruita12 km in a straight line
- Redlands22 km in a straight line
In our other atlases
What else is around Rattlesnake 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.
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 | 6 | 8 | 14 | 19 | 26 | 34 | 37 | 34 | 29 | 20 | 13 | 6 |
| Afternoon · rim | 4 | 6 | 12 | 17 | 24 | 32 | 34 | 32 | 27 | 18 | 10 | 4 |
| Night · rim | -7 | -5 | -1 | 2 | 8 | 14 | 18 | 16 | 12 | 4 | -2 | -6 |
| Rain (mm) | 29 | 29 | 32 | 33 | 31 | 15 | 34 | 34 | 40 | 38 | 28 | 35 |
| Rainy days | 8 | 8 | 8 | 9 | 8 | 4 | 9 | 10 | 8 | 7 | 6 | 7 |
| Sun hours/day | 6.5 | 7.3 | 8.5 | 9.5 | 10.8 | 12.9 | 11.5 | 10.5 | 10.0 | 8.3 | 6.9 | 5.7 |
| Snow on the ground (cm) | 16 | 15 | 10 | 6 | 2 | 0 | 0 | 0 | 0 | 3 | 10 | 16 |
| Afternoon · floor | Afternoon · rim | Night · rim | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 6 | 4 | -7 | 29 | 6.5 |
| Feb | 8 | 6 | -5 | 29 | 7.3 |
| Mar | 14 | 12 | -1 | 32 | 8.5 |
| Apr | 19 | 17 | 2 | 33 | 9.5 |
| May | 26 | 24 | 8 | 31 | 10.8 |
| Jun | 34 | 32 | 14 | 15 | 12.9 |
| Jul | 37 | 34 | 18 | 34 | 11.5 |
| Aug | 34 | 32 | 16 | 34 | 10.5 |
| Sep | 29 | 27 | 12 | 40 | 10.0 |
| Oct | 20 | 18 | 4 | 38 | 8.3 |
| Nov | 13 | 10 | -2 | 28 | 6.9 |
| Dec | 6 | 4 | -6 | 35 | 5.7 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the floor (1,342 m) and the rim (1,659 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 | 71% | 29% | 146% | 32% | 27% | 127% | 44% | 23% | 57% | 45% | 66% | 64% |
| 2021 | 80% | 100% | 109% | 28% | 67% | 125% | 121% | 120% | 103% | 134% | 26% | 240% |
| 2022 | 21% | 63% | 95% | 43% | 56% | 86% | 91% | 128% | 116% | 160% | 104% | 171% |
| 2023 | 195% | 87% | 190% | 87% | 43% | 114% | 22% | 110% | 25% | 84% | 91% | 63% |
| 2024 | 69% | 96% | 171% | 62% | 86% | 249% | 41% | 209% | 39% | 98% | 183% | 28% |
| 2025 | 22% | 80% | 63% | 59% | 56% | 120% | 22% | 54% | 80% | 194% | 94% | 37% |
130% or more: wet month 70% or less: dry month
Where these figures come from
| Name, type, published depth and length | Wikidata (Q7295987) · 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.



