The document summarizes Audrey Kolkana's field observations around Lake Tahoe, including evidence of glaciation like carved lakes, and plant life like greenleaf manzanita and lupine. Rock types observed are described as slate, granite, and sandstone. Glaciers are noted to have carved lakes, melted, and filled Lake Tahoe. Greenleaf manzanita is a common bush that thrives after fires. Lupine is found across western North America in many colors and adapts to drought. The different rock types are characterized, and an example of an angular unconformity is shown in a photo.