A very large proportion of Yosemite's visitors see nothing more than the Valley, yet no consideration is tenable which conceives the Valley as other than a small part of the national park. The two are inseparable. One does not speak of knowing the Louvre who has seen only the Venus de Milo, or St. Mark's who has looked only upon its horses. Considered as a whole, the park is a sagging plain of solid granite, hung from Sierra's saw-toothed crest, broken into divides and transverse mountain ranges, punctured by volcanic summits, gashed and bitten by prehistoric glaciers, dotted near its summits with glacial lakes, furrowed by innumerable cascading streams which combine in singing rivers, which, in turn, furrow greater canyons, some of majestic depth and grandeur. It is a land of towering spires and ambitious summits, serrated cirques, enormous isolated rock masses, rounded granite domes, polished granite pavements, lofty precipices, and long, shimmering waterfalls. Bare and gale-ridden near its crest, the park descends in thirty miles through all the zones and gradations of animal and vegetable life through which one would pass in travelling from the ice-bound shores of the Arctic Ocean the continent's length to Mariposa Grove. Its tree sequence tells the story. Above timber-line there are none but inch-high willows and flat, piney growths, mingled with tiny arctic flowers, which shrink in size with elevation; even the sheltered spots on Lyell's lofty summit have their colored lichens, and their almost microscopic bloom. At timber-line, low, wiry shrubs interweave their branches to defy the gales, merging lower down into a tangle of many stunted growths, from which spring twisted pines and contorted spruces, which the winds curve to leeward or bend at sharp angles, or spread in full development as prostrate upon the ground as the mountain lion's skin upon the home floor of his slayer. Descending into the great area of the Canadian zone, with its thousand wild valleys, its shining lakes, its roaring creeks and plunging rivers, the zone of the angler, the hiker, and the camper-out, we enter forests of various pines, of silver fir, hemlock, aged hump-backed juniper, and the species of white pine which Californians wrongly call tamarack.