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On the afternoon of Monday (Day 1), we head up the Potrero Ridge trail off of Reino Road to evaluate it for maintenance needs
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COSCA Ranger Bruce explains that the slough should be cleared out from the uphill side of the trail
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The outside of the trail has fallen away here
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Marking the flagging tape that will show where repairs need to be made
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Conejo Mountain is to the south of us
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Evaluating a switchback
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Our instructor, Frank Padilla, is going to show us how to make a rolling dip, also known as a grade dip. The rolling dip will keep rainwater from running down the middle of the trail and creating a rut.
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You start by scratching out the lower boundary
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Next you dig out the dip that will channel water off the trail
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Use a Macleod to move the dirt around a build up a small berm downhill of the new hollow in the trail
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Finally, pack it all down
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Now the students build their own grade dips.
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This one is nearly finished
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Rocks in the spillway keep the water from gouging out a big rut and encroaching on the trail
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Back in the meeting room to wrap up Day 1
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Tuesday, Day 2. We practice the safety talks we learned earlier in the morning. This is Ranger Blair
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Steve, a CORBA and COSTAC volunteer, practices his safety talk
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Shelly, a COSCA manager, practices her safety talk
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Ranger Bruce wings his safety talk
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After learning about the clinometer (an instrument to measure the grade of the slope), we head outside to practice with them
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The bright ribbon is used to help the clinometer user (clinometrist?) to measure the grade
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