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The Napa River Ecological Reserve "has become an important habitat for many species of birds and other wildlife." It's no wonder, for the 73 acre parcel has just about everything wild animals need: abundant cover, food, and water. Valley and coast live oaks, California bay, willow, and thickets of shrubs shelter birds, an astounding variety of wild berries, nuts, and fruits feed birds, small mammals, and even a host of butterflies, and the Napa River holds water all year round.
We suggest you park in the lot for the preserve and walk the short distance to the cache which is just off reserve property. You are looking for a "small" regular cache which is large enough for a full sized pen and some trade items.