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Collection: Directories and Documents > Pamphlets

Rock Creek Nature Trail (PH 1-10) (12 pages)

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6. These are two large incense-cedars. The finger-like sprays of foliage, tapered trunk, and pencil fragrant wood are features of the incensecedar. It never grows in pure stands but is mixed with other conifers of the yellow pine belt. The heavy, shreddy bark resembling that of the redwood covers its durable fragrant wood. Cedar is valuable where resistance to moisture is important, such as posts and shingles, and, of course, the common lead pencil. The cedar grows well in either moist or dry conditions, but its slow growth prevents it from dominating the forest environment. 7. The shrub all around this marker is California hazelnut. The spreading loose stems and finely-haired, bluntly-pointed leaves are characteristic of California hazelnut. In early spring it produces the male catkins hanging worm-like and then the solitary, small, pink female flowers appearing before the leaves. Animals eat the nuts even before they ripen. 8. As you stand here and watch the quiet babbling of Rock Creek, imagine the water that is flowing as a great living organism, with its heart in the mountains that supply its life blood. This blood flows out through the streams that form the arteries above and below ground, coming down from a hundred thousand hidden sources, the mountain springs and meadows, the patches of moist woodland with the porous soil beneath them, the shaded snow banks and the afternoon thunderstorms, the flow of every raindrop held back by grass and flowers, absorbed by bits of rotting wood, filtering into the soil through a million root tunnels and worm holes, delayed, but slowly moving down the hillside through the soil, to bring a steady, even flow of life to the valleys below. 9. The California yew is extremely durable and will try to adapt to change in its environment such as flooding and drought, or even damage to its own branches. Here a yew has been sliced right down the middle of its crown as if by a large meat cleaver. The tree is still healthy and will probably continue to grow with two crowns.