Lecture 8 3/9/15 Chemeketa Community College GEO 143 Lecture 8 Web Site Lecture Here is the powerpoint in pptx format. 49 MB Here is the powerpoint in pdf format. 32 MB Lab Here is lab 3 in pdf format. 0.4 MB pdf Here is the protractor for the lab. 0.4 MB Here is the USGS Topographic Map for Mt. St. Helens, for the lab. 18 MB pdf