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Resource Number: 5DT1053 (Coal Sales Building)
<br />Temporary Resource Number: GRI 2014 -35
<br />from 1903 until 1974; the highest production year was 1920 when 103,622 tons were produced and 110 miners were
<br />employed.
<br />Included within this site are the tipple, sales house, power plant, lower mule barn, powder house, blacksmith
<br />shop, and mine portal complex (hoist house, upper mule barn, and fan foundation /housing). The mine office and
<br />associated garage /shop area are included in the previously recorded site 5DT122.
<br />All that remains of the tipple are the concrete foundation footings for the steel piers in an area that measures
<br />approximately 90 feet by 75 feet. This tipple was constructed in 1928, and was constructed of steel; it replaced a
<br />wooden one completed in 1907. The new tipple was equipped with a rotary dump, a hopper and feeder, shaking
<br />screens and conveyors to load cars on four tracks. A crusher was added in 1937. The tipple was dismantled by
<br />Adolph Coors Company after 1977.
<br />The coal sales house stands south of the tipple foundation. This two -story building is made of poured concrete
<br />foundation and floors with 8" masonry (concrete block) walls. The overall dimensions are 20' -4" x 20' -4 ". Presently,
<br />each floor contains only one room and one exterior door. The main floor door opens to the north and the basement
<br />floor door opens to the south. The main floor also has five 3' -8" x 5'-4" steel sashes with 8 lites in a 2 -wide, 4 -high
<br />configuration in which the 4 center lites operate in an awning fashion. The basement contains only one window
<br />opening (window not present) measuring 2' -8" x 2' -6" located to the east of the basement door. There is a small
<br />chimney which spans both floors located on the east wall near the southeast corner of the building. The 2:12 pitched
<br />shed roof utilizes railroad rails for framing and corrugated metal roofing (see drawing A6).
<br />Built on a 26 degree (lower) and 33 degree (upper) incline, the tramway was a 1200 - foot -long, double -track
<br />gravity plane. Steel cables were attached to cars. Each cable went back approximately 300 feet into the mine where
<br />it was attached to a separate drum within a common shaft. One cable went over its drum and the other cable under
<br />its drum, so that when one drum was winding up cable, the other cable was unwinding. Loaded cars descending on
<br />the gravity plane would be unwinding cable, and the other drum winding and pulling the empty cars up the plane. The
<br />"pit" cars, used to haul coal from the mine to the tipple, were designed for a capacity of two tons. The front end of
<br />each car was 15 inches higher than the sides and rear. This was to keep coal from sliding off as it descended the
<br />steep incline. Cars were connected by link and pins and when disconnected, controlled by hand brakes. Each car
<br />was weighed on the scale at the tipple and dumped into a storage hopper. A trip was usually made up of four loaded
<br />pit cars descending and pulling four empty cars up the plane. A trip could be stopped at any point on the tram and its
<br />speed controlled by the wheelman in the pilot house overlooking the tram.
<br />The power plant building, completed in 1922, is a 3.5 -story brick and concrete structure that measures 97' -7" x
<br />51' -6 ". It contained two boilers in the east room, and two 375 kilowatt, AC turbine - driven generators in the west room
<br />(only one of each remain). It replaced the DC generating plant that was built in 1915. The foundation and floor are of
<br />poured concrete. The brick walls and piers are 18 "' thick and are built from brick from the Delta Brick and Tile
<br />Company. The thirty -eight windows are constructed of five types. Fifteen windows (Type A) at the lowest placement
<br />are operating wood double hung windows which measure 4' -10" x 6-11 ", have a 5 -wide, 3 -high lite configuration per
<br />sash, 1 1/2" brick mold casing and precast concrete sills. Type B, numbering eight, are located in the boiler room on
<br />the east and south walls at the second level and are stationary wood sashes measuring 4' -10" x 5' -6" that contain a
<br />lite configuration of 5 -wide, 3 -high, 1 1/2" brick mold casing and precast concrete sills. The third style, Type C, of
<br />which there are only three, are located on the east and west ends of the building at the third level. These are
<br />decorative, stationary, round wood sashes measuring T -9" in diameter that have a four lite configuration, 2" brick
<br />mold casing and are set in a brick soldier course around the circumference. Type D are four windows located on the
<br />north wall of the boiler room at the second level, one above each door. These are stationary mullion units measuring
<br />9' -2" x 4' -0" with a 4 -wide, 4 -high lite configuration per sash, 1 1/2" brick mold casing and precast concrete sills. The
<br />remaining eight windows, Type E, are located on the north and south walls of the cupola. These operating units
<br />measure about 5'x 3', have a 5 -wide, 2 -high lite configuration in which the center 6 lites operate in an awning
<br />manner. The building has two large, flush wood panels on the east and west ends that measures 5'x 6' -8" and have
<br />a 4 lite over 5 panel door cut in the center. The north wall of the boiler room has four, flush wood panels that open
<br />vertically with track mounts on either side. The ceiling in the generator room has 2" x 4" wood framing that is
<br />attached to steel trusses with galvanized raised rib metal roofing for the ceiling membrane. The boiler room lacks a
<br />ceiling and is open, showing a truss network of welded and bolted angle iron with 1" x 6" steel "C" channel girls over
<br />trusses that support galvanized metal roofing. The eve overhang on the boiler room is approximately 3' wide and the
<br />eve overhang on the generator room is approximately 2' wide. The center of the boiler room roof has a steel frame,
<br />gable roof cupola which is sided and roofed with galvanized corrugated metal. This cupola measures roughly 12'
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