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Gold production up to 1990 was 21,000,000 troy ounces (650 t) worth about US$17 billion at 2008 prices) [clarification needed], making it the most productive gold-producing district in Colorado, [19] and the third-most productive in the United States (after Carlin, Nevada and Lead, South Dakota). Many of the mines in the district were quite ...
The Colorado Mineral Belt (CMB) is an area of ore deposits from the La Plata Mountains in Southwestern Colorado to near the middle of the state at Boulder, Colorado, and from which over 25 million troy ounces (778 t) of gold were extracted beginning in 1858. [2]
An enlargeable map of the Front Range Urban Corridor of Colorado and Wyoming. Regions of Colorado include: Central Colorado (part of Southern Rocky Mountains) Colorado Eastern Plains (part of High Plains) Colorado Mineral Belt (part of Southern Rocky Mountains) Colorado Piedmont (parts of the Front Range Urban Corridor and Colorado High Plains)
The borders of Colorado are now officially defined by 697 boundary markers connected by straight boundary lines. [3] Colorado, Wyoming, and Utah are the only states that have their borders defined solely by straight boundary lines with no natural features. [4] The southwest corner of Colorado is the Four Corners Monument at 36°59'56"N, 109°2 ...
South Park is a grassland flat within the basin formed by the Rocky Mountains' Mosquito and Park Mountain Ranges [1] within central Colorado. This high valley ranges in elevation from approximately 9,000 to 10,000 ft (3,000 m).
Oro City, an early Colorado gold placer mining town located about a mile east of Leadville in California Gulch, was the location to one of the richest placer gold strikes in Colorado, with estimated gold production of 120,000–150,000 ozt (8,200–10,300 lb; 3,700–4,700 kg), worth $2.5 to $3 million at the then-price [clarification needed ...
Scientists from around the world come to Colorado to study the minerals of this region. Because the granite covers a large portion of the Colorado Front Range, there are good mineral collecting areas scattered all over the Pikes Peak region. The collecting localities range from near Colorado Springs on the south to just west of Denver on the north.
By the time the Territory of Colorado was formed on February 28, 1861, Central City was already the largest city in the entire territory, though Denver was made the state capital. The Central City/Black Hawk area was a basically continuous arc of mining camps and urban development, with a population of more than 3,000 at its height in 1870.