Colorado Mineral Belt
The 250 mile long Colorado Mineral Belt cuts diagonally across central and southwestern Colorado, in the heart of the Rocky Mountains. Mt. Elbert (14,431 feet) is the highest of many high peaks in the belt, all of which were glaciated during the Ice Age. The region has heavy snowfall in the winter, with mild, pleasant summers.
Placers can be found downstream from many of the mining districts in the Colorado Mineral Belt. The best known placers are those on North Clear Creek west of Denver, at Breckenridge, at Alma and Fairplay, and at Leadville, all of which have been extensively worked. The richest gravels were at Breckenridge, where some 800,000 ounces of placer gold were recovered between 1859 and 1972. Placers in the Leadville area yielded over 350,000 ounces, and North Clear Creek yielded over 300,000 ounces of gold. The Alma-Fairplay placers also yielded around 300,000 ounces of gold. The richest and most productive placer gravels are in the Front Range (northeast) portion of the Colorado Mineral Belt. The bucketline dredge used at Fairplay was the largest in Colorado, and was in service until 1951.
The Fairplay district produced 202,000 ounces of placer gold, mostly along the South Platte River in the snowstorm and Fairplay Placers. Along Sacramento and Beaver Creek is excellent placer ground. The area Southeast of town in glacial out wash gravels contains placer gold. At the head of Fourmile Creek is the Horseshoe Mine and it was a good producer. North of Fourmile Creek and south of Mosquito Creek is the Sacramento Mine that produced a by product of gold.
The Alma district is located east of Leadville and had a total production of 1,320,00 ounces of lode gold and 28,000 ounces of placer gold between 1859-1959. Northeast of Alma about a 1/2 mile, along the east side of the South Platte River, the placers produced great. Coarse gold nuggets to several ounces have been found. All the area tributary creeks and gulches, in gravel deposits contain placer gold. On Mount Lincoln and Mount Bross, rich area lode mines, especially the London Mine (richest producer in the county, closed in 1942) produced most of the gold and silver. Near the head waters of the South Platte River, along the Continental Divide, on North Star Mountain, all area gulches contain placer gold. Northwest of Alma, 2~6 miles, many small mines produced lode gold. North of Alma 5~10 miles is the Consolidated Montgomery Mine. This mine is at an altitude of around 11,000 feet and produced a by product of gold. In Buckskin Gulch, the Sweethome Mine was a good producer. Around Mosquito creek, all streams produce placer gold.
In the Breckenridge or Blue River district, including the tipper valley of the Blue River between the Front Range on the East and the Tenmile Range on the West had a total production of 1,000,000 gold ounces of which 735,000 ounces came from placer deposits. In all regional stream channels, gulches, benches, etc. you can find placers. East and northeast of town, in area of about 5 square miles, there are many lead-silver mines that produced a by-product gold. In Georgia Gulch, on North side of Farncomb Hill, rich area placers discovered in 1859, area lode mines, discovered in 1880, especially the Wellington Mine, chief producer, it was so rich in native gold that pockets supplied collectors and museums throughout the world with specimens of wire and leaf gold. Along the Swan and Blue rivers, many deep placers worked by dredges after 1900.
Frisco is located 4 miles southwest of Dillon and in the Tenmile district. It includes old camps of Kokomo and Robinson in the Tenmile Valley on the West Side of the Tenmile Range and had a total production from 1861-1959, of 52,000 gold ounces, mostly as by-product of base-metal ores. Area old mine dumps contains gold, with galena and pyrite. Various local small creek placers are around like Kokomo, in McNulty Gulch, rich placers discovered in 1861, and many mines along valley of Tenmile creek for 2-3 miles northeast and 5 miles southwest to Robinson. On East Side of valley, in the Tenmile Range, on West, slopes, many base-metal mines produced lode gold.
The Gravel and bench deposits along Clear Creek, just north of Denver contains placer gold. All bars, and benches along Clear Creek, which is a tributary of the South Platte River, had extensive placer operations which produced 16,800 ounces of gold between 1922 and 1959.
Along the South Platte River all gravel bars contain placer gold. Also along Cherry Creek, Dry Creek and Cottonwood Creek in T5S R66W and R67W had many productive placer workings. All regional tributary gravels contain placer gold.
Southwest of Denver in the Holy Cross Mountains, there are many small mines that produced lode gold. Some placer workings as well.
Northwest of Boulder 3-8 miles is the Gold Hill Sugarloaf district. This district is about 12 square miles and had a total production of 412,000 ounces 1859-1959. In the area creek beds, terraces, benches, etc. you can find placer gold over 3,000 ounces have been produced. Gold Hill Mine, largest producer, including several adjoining mines produced lode gold and silver. The old camps of Sugarloaf, Rowena, Salina, and Sunshine are great places to explore. There are many area mines that produced lode gold and silver. Southwest of Boulder 4 miles to Magnolia, reached by steep grades, numerous high-grade mines that produced lode gold in tellurides. The total production of 130,000 ounces was recorded. West of Boulder 17 miles and 4 miles Northwest of Nederland, is the Grand Island-Caribou district in southwest part of county. The Grand Island- Caribou district had a total production between 1932-59, of 10,006 ounces. There are numerous area lead-silver mines that produced a by-product of gold. The Cardinal and Eldora mines are in the area and produced lode gold.
Jamestown is in the Central district. Nine miles northwest of Boulder there were many area mines. Lefthand Creek, north of Gold Hill, Bummers Gulch, Coon Trail, North Beaver and South Boulder Creeks, southeast of Caribou contain placer gold. James Creek above Jamestown contains placer gold. Central Gulch, west of Jamestown contains placer gold. Upper Fourmile Creek, northwest of Sugarloaf contains placer gold. It had a total production of 207,000 gold ounces. There are many area mines that produced gold in pyrite and telluride minerals. The Jamestown, Gold Hill and Ward area mines all produced lode gold.
North of Nederland on Route 160 toward Ward, turn east onto the Sugarloaf - Sunset road for 7 miles to the Oregon Mine. This mine produced gold in sulfide ores.
The Ward district is 9-13 miles northwest of Boulder. It covered 12 square miles in headwaters of Lefthand and Fourmile Creeks. The old camps of Sunset and Copper Rock, more than 50 lode mines in area, had a total production of 172,000 ounces of lode gold. The Niwot and Columbia mines were the largest producers of lode gold. In east part of district, many mines produced gold in tellurides.
Located in the northcentral part of Colorado on the Front Range west of Denver. Clear Creek County ranks seventh among Colorado's gold producing counties, with a total of 2,400,000 ounces coming mainly from lode mines from 1859-1959, with primary production from 1859 to 1864 coming from placer deposits. The main area of interest is in the northcentral part of county 7 miles west by northwest from Central City in Gilpin County. The Alice district extends into Gilpin County and had a total prod production of 23,000 gold ounces from 1883-1959. The Alice Mine was first worked as a placer producer of 2,903 gold ounces then as a lode mine. The North Star-Mann Mine was a producer of 5,610 ounces through 1916 of lode gold.
Daily is near headwaters of West Fork of Clear Creek and Butler Gulch, 2 miles east and southeast of Jones Pass. There are many area mines that produced lode gold.
Georgetown / Silver Plume is on U.S. 6 and 40-42 miles west of Denver. The steep grades in this area are treacherous. Georgetown / Silver Plume is in west part of county. This district consisted of 25 square miles and had a total production of around 145,000 gold ounces. Area mines produced a by-product of gold. Southwest of Georgetown / Silver Plume 6 miles is the Argentine or west Argentine district. Just east of the Continental Divide, this district had a total production of 25,400 gold ounces. Along Leavenworth Creek, and on the southeast side of Leavenworth Mountain on the southeast slopes of McClellan Mountain, at head of Leavenworth Creek, 6 mi. farther southwest, many area mines produced lode and by-product gold. On Kelso Mountain, area mines produced lode gold. The Belmont Silver Lode and the Baker Mine were the largest district producers of lode gold.
Idaho Springs district embraces an unbroken succession of gold deposits extending from the town to Central City and Blackhawk in Gilpin County. It had a total production in this district of about 1,805,000 gold ounces. The mines at Cascade, Coral, Jackson Bar, Paynes Bar, Spanish Bar, and Virginia Canyon all produced lode gold. In Chicago Creek, Nevada and Illinois gulches, and Missouri Flats, there were extensive placers operations. The Gregory, Russell, Bates, Bobtail, and Mammoth mines all produced lode gold. Northwest of Idaho Springs, 2.5 miles, at Trail, Freeland and Lamartine there were numerous mines. Along Trail Creek and the Lamartine Mine, 2 miles southwest on the divide between Trail Creek, and Ute Creek, 2 to 4 miles off U.S. 6 and U.S. 40. There are many lode gold mines. West of Idaho Springs 6 miles, along Silver Creek, placer workings from old can still be observed. Northwest of Idaho Springs 10 miles (2 miles on U.S. 40 and 8 miles on Route 285), to Alice (Lincoln, Yankee Hill, elevation 10,000-11,000 feet), numerous area mines produced lode gold. The camps of Montana (Lawson, Dumont, and Downieville), the west extension of district on U.S. 6 and U.S. 40, many area mines produced lode gold.
The best areas to prospect in Elbert County are: Platte River, Gold Run Creek and Ronk Gulch.
All Platte River bars and terrace gravels contain placer gold.
West and Northwest of Elizabeth 1.5 miles, along Gold Run Creek and Ronk Gulch on Route 86, about 40 miles southeast of Denver there are some good gold deposits in the gravels in this area.
East of Grand Lake 7 miles on route 278, the area lead silver mines had a by product of gold.
Reported by: Tom Peden
Kaufman Creek is one of the five creeks that drains from the top of Gravel Mountain. Gravel Mountain, as its name implies is covered with gravel. Similar to that of Independence Mountain. All five of these creeks contain gold, but I've only prospected on Kaufman Creek. The heavy gravels in the bottom of the pan is just like those found on Independence Mountain. Leads one to think that these gravels are the result of glacial activity. On my last trip to the area, I found a false bed rock of conglomerate. With good gold at the contact zone. Have not found any nuggets, over 1/8", yet. But the area is worth prospecting.
South of Parshall, to the head of Williams Fork, is the La Plata district. It extends a few miles southeast across Jones Pass on the Continental Divide in the headwaters of the West Fork of Clear Creek. The lode gold there is often associated with pyrite.
Half mile above town, on Cub Creek, small mines produced lode gold. South 1.5 miles on Route 73 is the Augusta Mine that produced a by-product gold. Southwest .75 miles on Northwest side of Cub Creek, along Route 334, and .25 miles Northwest of Route 74, mine with gold, with fluorite and silver. The Malachite Mine, notable copper producer by-product gold.
West, along Clear Creek, to East, many good placers. Area sand and gravel pits are a source of most gold in recent years.
LAKE COUNTY, COLORADO
by: Tom Ashworth
Two of Colorado’s most important mining areas are in Lake County, Climax and Leadville. Only Leadville is important in gold production and accounts for most of its nearly 3,000,000 ounces. Since almost all of Leadville’s production was a by product of silver, weekend prospectors have overlooked both Climax and Leadville in favor of the Arkansas River placers.
The entire Arkansas River Valley in southern Lake County has had productive placer locations with some of the better locations being Box and Lake Creeks and California Gulch. Most of the tributaries can be counted on to turn in small amounts of placer gold.
Reported By: Greg Ferris
The confluence of the Arkansas River and Lake Creek area was the general site of some the most extensive and successful placer mining operations in Colorado. Within a short distance are placer areas from numerous sources. Some 4 miles upstream from Lake Creek the Arkansas River is joined by Box Creek and several smaller outlets which provided source gold from the eastern slopes of Mount Elbert (Colorado's tallest mountain). This area was extensively worked for a considerable time period and is generally known as the Derry Ranch Placers. Lake Creek was a principal contributor of placer gold now found in the Arkansas River, draining water courses from the southern and southeastern slopes of Mount. Elbert and adjoining peaks. The majority of the gold originally was accumulated in moraine deposits, a short (6 mile) drive west on Hwy. 82 into the Twin Lakes area will quickly demonstrate the glacial valley. These lakes are now used for the production of hydroelectric power and the saving of fresh water. Originally the lakes (actually 1 lake) were created by two separate glacial flows with the end moraines providing the base dam and the upper/lower lake division. Needless to say with man's "damn" interference, gold no longer is sorted and fed down into Lake Creek from the glacial gravels. Just below the dam for a distance of about 3 miles Lake Creek again flows unimpeded. Dennis O'neil of Balltown, Colo. (a little collection of locals at the junction of Lake Creek and the Arkansas River) owns numerous claims on both Lake Creek and the Arkansas River which are open to daily fee users. Each of the various available claims areas is restricted to different prospecting methods. The most common activities are high-banking and panning. Dredging is allowed, by permit from BLM, on the Arkansas River. I have found that there are some virgin gravels on the Eastside of Lake Creek in the designated high-banking area but it is tough work as these are packed gravels. It should be noted that of the gold that is found, like most Colorado placer gold, it is of the "fine" variety and your prospecting technique requires care to maximize efforts. Occasionally small pickers and some minor flakes are found. Black sands are abundant and are filled with microscopic particles of gold. In this area water must be pumped almost 200' and considerably uphill. Fortunately you can drive to within 25-50' of the work area. Other areas are designated "panning only" along Lake Creek banks. On the Arkansas River, just 100-200 yards downstream from Lake Creek are some good high-banking areas. These most of these gravels are actually tailings piles from hydralicking and fluming operations of the late 1800's. The old miners must have only been interested in the big pieces because there are considerable fines and flakes to be found. Access is also easy by parking by State Hwy. 24 and crossing over railroad tracks to work area. Water access is also easier here although attention must be paid to fluctuating water levels as the hydroelectric operations on Twin Lakes can allow or stop large volumes of water in very short periods. I have discovered no real secret tips for working the tailings area, just make sure you aren't reworking the tailings of a "modern" prospector. The previously mentioned high-banker area on Lake Creek however does have distinct layers to be worked and better finds can be had for the gambler. As with most of the upper Arkansas River drainage no matter where you work you will find some success as I have never been able to run a single pan between the Pan Ark Lodge (Derry Ranch Placers) all the way down to Salida (50+ miles) without at least finding some color.
Along Box Creek, there was a large dredge operations for placer gold. Along lower Box Creek there was a most productive dredging operation.
Southeast of Climax 1 mile, in the Arkansas River Valley, 10 to 12 miles northeast of Leadville, is the Alicante Mine. It produced lode gold in pyrite ore. Four miles farther south, is the Birdseye Mine on the East side of the valley. It was a base metal mine, with a by product of gold.
Leadville district had a total production of 2,970,000 ounces of gold. In the area there were many great mines. I read a few weeks ago that the last mine shut down in Leadville though (Feb. 1999 California Mining Journal). In Iowa and California gulches, there were some very rich placer mines. The old placer camp of Oro City, is now a ghost town. You couldn't tell that it once has over 10,000 residents. There are many placers that have to be worked using high bankers or trommels in the area.