Dolly B |
The "Doris" features one Queen Bed, private bath with shower.
This room also has a large open view.
Rental Rates: (based on single or double occupancy price/ two-night minimum stay)
THE DORIS MINE, LEADVILLE, COLORADO
"In 1892, "The Doris Mine", was located on Hong and Derry Hill in Iowa Gulch,
Leadville, Colorado. This mine was added to the additional producing mines during
the past years. In six months, The Doris Mine, netted its fortunate owner, Mr. H.
Mamlock, the snug sum of $17,000. The ore is an excellent carbonate, running well
in gold. A Sullivan diamond prospecting drill is used by this company."
"These machines are operated by steam, compressed air or electricity,
and are made in various designs suitable for surface or underground work.
of this modern method of prospecting is the vast saving
of time and money as compared with the old and more expensive method
of driving drifts and cross-cuts,
or sinking shafts to determine the location of mineral
deposits. They bore a hole one and a half to two inches in diameter in
any angle or to any depth desired,
removing a "core" or cylindrical section of the formation penetrated,
perfect samples for assays. This drill takes about three
amperes at 440 volts, as an average, with a short drill rod, about four
amperes when running with 150 feet of drill
rod, and a maximum of eight amperes at full speed, in exceptionally
bad ground. The speed of drilling was given as forty-five feet per day
of twenty hours, as an average
of a five months' run. The cost of drilling, exclusive
of the cost of power, was put at 45 cents. The operating expenses of
the plant are about $12 per month per horse
power, or 2 cents per horse power per hour, figured on
a basis of twenty-five horse power. The wages of the two attendants comprise,
of course, almost the entire cost."
IMPROVED MINING MACHINERY AND PROCESSES
What They Have Done Towards Developing The Mines of Colorado
MINES AND MINING MEN of COLORADO
John G. Canfield, Publisher
Denver, Colorado 1893
Notes of Interest:
Mamlock, Harry, 70, September 20, 1917
Death claimed on of Leadville's oldest pioneers as
Harry Mamlock came to the district in the earliest
days of 1879. A mining promoter, he was responsible
for bringing in large amounts of capital for mining
development work. At one time he was in the saloon
business and at another time he operated a loan
business out of his home.
This property lies on the south side of Iowa Gulch just opposite of the "1st. National Mine".
The shaft on the property is 400 feet deep, and consists mostly of Blue Limestone.
According to hearsay, the Blue Limestone ore was shipped and was said to contain much Silver and Gold.
Large bodies of Iron Sulphide, too low grade for commercial use, are also said to have been partially developed.
Mangano-siderite and other manganese are common and do contain much Silver.
Sulphides are present in the minerals which are Lead, Zinc and Iron (pyrite).
The Silver-Lead ore averaged 4 feet in width -or-$20.00 ore figured - of .65 cent Silver and 4.5 cent of Lead.
From Chapman and Stephens