Beginner terrain
that is good as you develop your backcountry skills and when the avalanche danger is higher. Click for details.
Intermediate
terrain that requires more experience in skinning and skiing. Click for details.
Advanced terrain
that requires strong skiing and skinning skills. Click for details.
Expert terrain that is
challenging and a small mistake can have serious consequences. Click for details.
Extreme terrain
that includes insanely difficult chute skiing and beyond. Click for details.
The difficulty of this terrain
varies widely. Click for details.
This terrain hasn't
been rated. Click for details.
Although this slope was measured, slopes are not homogeneous—this should be considered approximate. Click for details.
This slope angle was not measured. If you get an accurate slope measurement, please send it to me at info@vRigger.com.
The slope angle varies widely. Click for details.
This is the general direction the slope faces. Click for details.
The Utah Avalanche Center says that dangerous avalanches are not expected in this terrain except during extreme or very unusual conditions. Click for details.
The Utah Avalanche Center says that this is generally low-angle terrain although the route may cross under steep avalanche runout zones. Click for details.
The Utah Avalanche Center says that this terrain has significant exposure to numerous commonly-occurring avalanche paths. Click for details.
The Utah Avalanche Center says that this terrain is exposed to significant avalanche hazards often with multiple terrain traps. Click for details.
This terrain can be accessed by resort skiers without skins. Click for details.
This terrain can be accessed by resort skiers without skins. Snowmobiles are allowed. Click for details.
This terrain is commonly skied by helicopter skiers. Click for details.
This terrain is commonly skied by helicopter skiers and by resort skiers without skins. Click for details.
This terrain is commonly skied by helicopter skiers, by resort skiers without skins, and by snowmobilers. Click for details.
This terrain is commonly skied by helicopter skiers. Snowmobiles are allowed. Click for details.
Snowmobiles are allowed in this terrain. Click for details.
From Big Cottonwood Canyon, you can reach the Lake Catherine drainage from Brighton by going toward the Dog
Lake Chutes and continuing past Lake Mary and Lake Martha.
From Little Cottonwood Canyon, follow the directions to Catherine Pass from the Grizzly Gulch trailhead and ski down to the lake. The ease of access to the
Lake Catherine area from Alta can result in a swarm of skiers.
About the name
In the 1870s, Catherine Brighton named Lake Catherine after herself, Lake Mary
after her infant daughter, and Lake Martha after a friend. There was a fourth lake, Lake Phoebe, but it
merged with Lake Mary when it was dammed in 1915. On older maps these lakes were referred to as the
Granite Lakes.