&lt;b&gt;NEW HOGAN LAKE, Calif.&lt;/B&gt; -- New Hogan Lake park rangers Alicia Unsinn (right) and Gary Basile (left) lead A.A. Stagg Senior High School students on a nature walk during Calaveras River Education and Appreciation Day here Sept. 11. The event, paid for through a grant from the U.S. Fish and Wildlife Service&#039;s Connecting People with Nature program, was designed to help students understand connections between the river&#039;s watershed and ecosystem, and the human relationship to it. 