Here's another "lost" cluesheet:

Mount Snow


Placed during the rainy 1999 Norba National Mountain Bike Racing Finals. At
the Clock Tower, facing the slopes, climb, leaving the chairlift to the
right. There is a swath of trees to your left with a snow maker on top. From
the snow maker, take 15 steps downhill on the path in the trees, then go
right for 7 steps, and find a letterbox under a rock. This is not meant to be
an experiment to see how tupperware and zip locks can withstand thousands of
gallons of snow making only 10 feet away...



Stay dry! Jay