Chinook Pass Cabin Owners Association     

2010 Field Trip Reports

CPCOA Field Trips are a wonderful way to meet your fellow cabin owners while learning more about the Chinook Pass area.   Listed below are reports from the 2010 field trips.   Full resolution of pictures is available by clicking on the image.

If you have any questions please contact Carl Buchholz at

July 24, 2010: Geology Field Trip - Landslides

Dr. Paul Hammond led an excellent geology field trip to the 2009 Nile landslide. This landslide had a major impact on cabin owners travelling to their cabins and all the people in the Nile area. However, this was a very small landslide especially compared to the Sanford Pasture Landslide in the same area, which could be one of the 10 largest landslides in the USA.

Thirty seven people participated in the field trip, which was a record number. In addition to cabin owners and friends, two people from the USFS and one person from the Department of Ecology attended. It truly is a privilege to attend Dr. Hammond’s field trips, because he knows so much about the geology of the area and he can discuss it so non geologists can understand much of it.

Dr. Hammond spends considerable time preparing for these field trips, which is evident from the handouts he made for all participants. A complete copy of these with notes about each stop, aerial and geological maps is posted on this CPCOA web site so everybody can use it. This was his fourth field trip, and we hope he will lead another one in 2011.

A copy of Dr. Hammond's handouts can be found here.

September 12, 2010: Bull Trout Field Trip

Gary Torretta, District Fisheries Biologist for the USFS at the Naches District, lead a bull trout field trip at Union Creek. All during Gary’s presentation and discussion we watched a pair of bull trout about 15 feet in front of us. At the very end of the discussion an otter - or - mink crossed the creek and startled another bull trout that swam past us.

Bull trout are classified as a threatened species, and they live in the American and Bumping Rivers and Bumping Lake. Then they spawn from late August into mid September in the upper reaches of the American River, Union Creek, Kettle Creek, Deep Creek, and upper Bumping River, which means that all cabins in the CPCOA area are located in a threatened species habitat and we will or have had regulations that affect our activities. The main regulation is how we handle the vegetation and hazard trees on our lots.

Gary shared with us the past 25 years of spawning site monitoring in the Yakima sub basin. There does not seem to be any imminent problems in our area and the fisheries people and we cabin owners want to keep the population increasing.

We want to thank Gary for taking his Sunday to share his knowledge of bull trout and lead an excellent field trip. Everyone who attended knows a lot more about an important fish that lives near our cabins and can have appreciation for what the fishery biologist are doing to protect this threatened fish.

Handouts from this Field Trip can be found here.