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These are shapefiles and final unioned polygon coverages used to calculate coal resources of the A through D coal zones, Yampa coal field, northwestern Colorado. Yamafing was used for the A coal zone, yambfing was used for the B coal zone, etc. Polygons that make up the final unioned polygons include counties, 7.5' quadrangles, townships, surface and coal ownership, leased areas, net coal thickness categories, and overburden categories. The final unioned coverage for each coal zone, was clipped by the resource boundary polygon of each coal zone. These polygons are described in the metadata files for the yam_bnd coverages.
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These are shapefiles and coverages that represent areas of combined State and Federal coal leases and mined-out areas in the Yampa coal field. Yamaleasg contains polygons for which resources were not calculated for the A coal zone. Yambleasg contains polygons for which resources were not calculated for the B coal zone, etc.
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Digitization of a selection of oil and gas well pad sites in the Piceance region of Western Colorado. A random sample of 146 pad locations from the "Digitized Piceance Oil and Gas Pads of Western Colorado, 2015" were used to identify the locations digitized in this dataset. The 146 polygons spatially intersect polygons in the 2015 shape file, but are not completely contained within the 2015 polygons. Well pad sites were delineated using a modified version of the Rapid Land Cover Mapping protocol (Preston and Kim, 2016). The base imagery used to delineate boundaries is the 2005 National Agriculture Imagery Program (NAIP) imagery. Preston, Todd M, and Kevin Kim. 2016. “Land Cover Changes Associated with Recent Energy...
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These are shapefiles and ARC/INFO polygon coverages showing the isopachs of total net coal in beds greater than or equal to 1.2' thick for the A, B, C, and D coal zones in the Williams Fork Formation, Yampa coal field, northwestern Colorado. YAMATHKG is for the A coal zone, YAMBTHKG is for the B coal zone, etc.
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These are shape files of final unioned polygon coverages used to calculate coal resources of the B and D coal zones, Lower White River coal field, Deserado assessment area, northwestern Colorado. Desbfing was used for the B coal zone; Desdfing was used for the D coal zone. Polygons that make up the final unioned polygons include counties, 7.5' quadrangles, townships, surface and coal ownership, lease area, overburden, and coal thickness categories. The final coverages were clipped to the resource areas for each coal zone, which are described in the metadata files for the des_bnd coverages.
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Land status and Federal mineral ownership in the Danforth Hills coal field, northwestern Colorado. Polygons that make up the ownership coverage include counties, 7.5' quadrangles, townships, surface and coal ownership. The ownership coverage was clipped to the base of the A and B coal zones or top of the Trout Creek Sandstone Mbr.
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These are shapefiles and ARC/INFO polygon coverages showing the isopachs of total net coal in beds greater than or equal to 1 ft thick for the Cameo/Fairfield coal group and for the Cameo/Wheeler, South Canyon, and Coal Ridge coal zones, southern Piceance Basin coal assessment area. Also included are isopachs of total net coal in beds 1-2.3 ft thick, 2.3-3.5, 3.5-7.0, and 7.0-14, and greater than 14 ft thick in the Cameo/Wheeler coal zone.
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This is a shape file and coverage of the top of the Rollins Sandstone Member. It outlines the area underlain by the coal-bearing Cameo/Fairfield coal group in the southern Piceance Basin coal assessment area. Also, it delimits the area within which resources were calculated and reported in the southern Piceance Basin coal assessment area. The polygon was adjusted to match the topography of the DEM.
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This is a shapefile and point coverage of 627 data points used in the assessment of coal in the southern Piceance Basin study area. Information in this file includes x, y location and point identifier. Lithologic and stratigraphic data and the geographic distribution of coal are based on our interpretations of geophysical logs from 526 drill holes as well as published lithologic descriptions from 31 coal exploration holes and 70 published stratigraphic sections described from outcrops.
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This is a shapefile and unioned polygon ownership coverage used to calculate coal resources of the A through D coal zones, Yampa coal field, northwestern Colorado. Polygons that have been combined include counties, 7.5' quadrangles, townships, surface and coal ownership. This ownership coverage was clipped by the largest resource boundary polygon--that of the A coal zone.
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Digitization of oil and gas well pad sites in the Piceance region of Western Colorado. Well pad sites were delineated using a modified version of the Rapid Land Cover Mapping protocol (Preston and Kim, 2016). The base imagery used to delineate boundaries is the 2015 National Agriculture Imagery Program (NAIP) imagery. Well coordinate locations facilitating the targeting of well pad sites were downloaded from the Colorado Oil and Gas Conservation Commission (COGCC) in February 2016. Preston, Todd M, and Kevin Kim. 2016. “Land Cover Changes Associated with Recent Energy Development in the Williston Basin; Northern Great Plains , USA.” Science of the Total Environment 566-567. Elsevier B.V.: 1511–18. doi:10.1016/j.scitotenv.2016.06.038.
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Final unioned polygon coverages and shapefiles used to calculate coal resources of the A through G coal zones, Danforth Hills coal field, northwestern Colorado. Danafing was used for the A coal zone; Danbfing was used for the B coal zone; etc. Polygons that make up the final unioned polygons include counties, 7.5' quadrangles, townships, surface and coal ownership, lease boundaries, overburden, and coal thickness categories. The final coverages were clipped to the resource areas for each coal zone, which are described in the metadata files for the *_bnd coverages.
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These are shapefiles and coverages of data points used in the assessment of coal zones A, B, C, and D in the Yampa coal field, northwestern Colorado. There are four separate shapefiles, one for coal zone. Yama_pts is for the A coal zone, yamb_pts is for the B coal zone, etc.
    map background search result map search result map Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2015 Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2005 based on a sample from 2015 data Danforth Hills land and mineral ownership, Colorado Plateau (danowng) Public data points (wells) in Danforth Hills coal field, Colorado Plateau (danptg) Area of coal-bearing Mesaverde Formation and Mesaverde Group, southern Piceance Basin assessment area, Colorado (psmvbndg) Dta points used in assessment of coal in the southern Piceance basin study area (psptg) Yampa coal field land status and Federal mineral ownership (yamowng) Structure contours on top of the Trout Creek Sandstone, Yampa coal field, CO (yamstrcg) Final unioned files for Yampa coal field resource calculations, northwestern Colorado (yam*fing) Yampa coal field combined leased areas and mined-out areas, Colorado Plateau (yam*leasg) Boundaries delimiting areas within which resources were calculated for A through D coal zones, Yampa coal field, CO (yam*bndg) Data point (drill locations) locations used in assessing coals in the Yampa coal field (yam*ptg) Isopachs of total net coal in A-D coal zones, Yampa Coal Field (yam*thkg) Unioned layer of coal resource calculation in the Danforth Hills coal field, Colorado (dan*fing) Final unioned polygons for the Deserado coal area, northwest Colorado (des*fing) Isopachs of net coal in the B and D coal zones, Deserado study area, Lower White River coal field, CO (des*thkg) Net coal thickness in the southern Piceance Basin, Colorado (ps*thkg) Final unioned polygons for the Deserado coal area, northwest Colorado (des*fing) Isopachs of net coal in the B and D coal zones, Deserado study area, Lower White River coal field, CO (des*thkg) Public data points (wells) in Danforth Hills coal field, Colorado Plateau (danptg) Danforth Hills land and mineral ownership, Colorado Plateau (danowng) Unioned layer of coal resource calculation in the Danforth Hills coal field, Colorado (dan*fing) Yampa coal field combined leased areas and mined-out areas, Colorado Plateau (yam*leasg) Data point (drill locations) locations used in assessing coals in the Yampa coal field (yam*ptg) Yampa coal field land status and Federal mineral ownership (yamowng) Final unioned files for Yampa coal field resource calculations, northwestern Colorado (yam*fing) Boundaries delimiting areas within which resources were calculated for A through D coal zones, Yampa coal field, CO (yam*bndg) Isopachs of total net coal in A-D coal zones, Yampa Coal Field (yam*thkg) Structure contours on top of the Trout Creek Sandstone, Yampa coal field, CO (yamstrcg) Dta points used in assessment of coal in the southern Piceance basin study area (psptg) Area of coal-bearing Mesaverde Formation and Mesaverde Group, southern Piceance Basin assessment area, Colorado (psmvbndg) Net coal thickness in the southern Piceance Basin, Colorado (ps*thkg) Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2005 based on a sample from 2015 data Digitized oil and gas pads in the Piceance Basin of Western Colorado in 2015