Plan a weekend of pampering and relaxation at St Julien Hotel in downtown Boulder. The hotel features a 10,000-square-foot spa with 12 treatment rooms, and a two-lane infinity pool with a whirlpool and outside terrace. Guests can get in shape at the fitness center with the latest cardiovascular and aerobic equipment. Choose from 201 rooms and suites with luxury bathrooms with soaking tubs and separate glass showers. Ask for a view of the Flatiron Mountains when you book your stay. All rooms offer complimentary Internet access, wired and wireless.
Precambrian metamorphic rock formed the core of the North American continent during the Precambrian eon 4.5–1 billion years ago. During the Paleozoic era, western North America was submerged beneath a shallow sea, with a seabed composed of limestone and dolomite deposits many kilometers thick.[54] Pikes Peak granite formed during the late Precambrian eon, continuing well into the Paleozoic era, when mass quantities of molten rock flowed, amalgamated, and formed the continents about 1 billion–300 million years ago. Concurrently, in the period from 500–300 million years ago, the region began to sink while lime and mud sediments were deposited in the vacated space. Eroded granite produced sand particles that formed strata—layers of sediment—in the sinking basin.[55]
