OCR Text |
Show 23 26. Greeley Bowl ( Figure 21) High intermittent hazard. This area can slide as several paths; or in times of severe instability, particularly when a depth hoar condition exists, the whole slope can break loose and slide as one. When this occurs, the avalanche has often run all the way to Little Cottonwood Creek and even part way up Sunnyside. For avalanche purposes, Greeley Bowl is divided into four sections, numbering from Gunsight to the north. Generally, as one goes along Rustler Ridge to the north, the slope in Greeley Bowl becomes less steep. Greeley No. 1 is the steepest area, around 40°, and is very prone to depth hoar formation. Control of Greeley Bowl is best done by artillery fire from the Albion gun. Early in the season when depth hoar exists, it may be wise to throw some extra large hand charges in the area of Greeley No. 1 and Greeley No. 2 to obtain definitive results. 27- Gunsight ( Figure 21) High intermittent hazard. This slope is also normally controlled from the Albion gun. Gunsight may slide as a unit itself or along with Greeley Bowl. Depth hoar is very common at the top of this gully; and in seasons when it exists, it is a good idea to throw a large explosive charge into the area by hand. Access to the slope is obtained by climbing above the High Traverse where it crosses Sunspot, and traversing to the prominent notch on the skyline. 28. East Greeley Chutes ( Eddie's High Nowhere) ( Figure 21) High intermittent hazard. By climbing to the next notch above Gunsight, one arrives at the top of the East Greeley Chutes. This long, steep slope is controlled by firing from the Albion gun. |