A B C D E F G H
1 State/Province Layer Comments File name File type Scale Source Source Website
2 Alaska Stream/river   Alaska_Rivers shapefile   Steve Smith  
3 Alaska Lake I can't find a layer for this          
4 Alaska Drainage basin (HUC)   AK_HUC shapefile   Alaska USGS http://agdc.usgs.gov/data/projects/anwr/metadata/akhuc.html
5 Alberta Stream/river Edited and merged layers from website WestCanada_streams shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
6 Alberta Lake Edited and merged layers from website WestCanada_lakes shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
7 Alberta Drainage basin (HUC)   canadwshed_p shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
8 Arizona Stream/river good, but no names azhydroy shapefile   GIS Data Depot data.geocomm.com
9 Arizona Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
10 British Columbia Stream/river Edited and merged layers from website WestCanada_streams shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
11 British Columbia Lake Edited and merged layers from website WestCanada_lakes shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
12 British Columbia Drainage basin (HUC)   canadwshed_p shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
13 California Stream/river good but possibly too detailed, if there is a better layer that includes stream names it would help CA_hydro_linear shapefile 1:24,000 Cal-Atlas download http://www.atlas.ca.gov/download.html
14 California Lake good but possibly too detailed, if there is a better layer that includes lake names it would help CA_hydro_poly shapefile 1:24,000 Cal-Atlas download http://www.atlas.ca.gov/download.html
15 California Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
16 Colorado Stream/river   CO_river2co shapefile 1:100,000 Colorado Division of Water Resources http://water.state.co.us/pubs/gis.asp#1
17 Colorado Lake perfect CO_lak3co shapefile 1:100,000 Colorado Division of Water Resources http://water.state.co.us/pubs/gis.asp#1
18 Colorado Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
19 Idaho Stream/river doesn't have stream names, but I can use the other layer ID_hyd2mil shapefile 1:2,000,000 INSIDE Idaho Spatial Data http://inside.uidaho.edu/asp/geodata.asp
20 Idaho Stream/river good but possibly too detailed, if there is a better layer that includes stream names it would help ID_hyd250 shapefile 1:250,000 INSIDE Idaho Spatial Data http://inside.uidaho.edu/asp/geodata.asp
21 Idaho Lake perfect ID_lake_250 shapefile 1:250,000 INSIDE Idaho Spatial Data http://inside.uidaho.edu/asp/geodata.asp
22 Idaho Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
23 Montana Stream/river perfect MT_hd43a (major lakes and streams) shapefile 1:100,000 Montana NRIS http://nris.mt.gov/gis/default.asp
24 Montana Lake perfect MT_hd43p (major lakes and streams) shapefile 1:100,000 Montana NRIS http://nris.mt.gov/gis/default.asp
25 Montana Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
26 Nevada Stream/river I can't find a layer for this          
27 Nevada Lake   NV_lake_100 shapefile 1:100,000 Nevada Natural Heritage Program http://heritage.nv.gov/gis/gis.htm#lakes
28 Nevada Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
29 Oregon Stream/river doesn't have stream names OR_streams shapefile 1:2,000,000 Oregon GEO http://gis.oregon.gov/DAS/EISPD/GEO/alphalist.shtml
30 Oregon Stream/river okay, but I think it's missing some streams or_303str (clean water act 303d streams) shapefile 1:100,000 GIS Data Depot data.geocomm.com
31 Oregon Stream/river detailed attribute table, but the layer doesn't match up with the lakes or_rivers shapefile 1:250,000 GIS Data Depot data.geocomm.com
32 Oregon Lake okay, but almost too detailed (a lot of tiny waterholes and ephemeral streams/ponds) OR_lakes shapefile 1:24,000 Oregon GEO http://gis.oregon.gov/DAS/EISPD/GEO/alphalist.shtml
33 Oregon Lake not as detailed and doesn't have names OR_waterbodies shapefile 1:2,000,000 Oregon GEO http://gis.oregon.gov/DAS/EISPD/GEO/alphalist.shtml
34 Oregon Drainage basin (HUC) detailed attribute table, to watershed (smallest) level ORWATER shapefile   GIS Data Depot data.geocomm.com
35 Oregon Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
36 Utah Stream/river   UT_SGID_U100_streamsTIGER2000 shapefile 1:100,000 Utah SGID http://gis.utah.gov/sgid-vector-download/utah-sgid-vector-gis-data-layers-by-category#Hydrology
37 Utah Lake   UT_SGID_U500_WaterBodies_UDOTHwyMap shapefile 1:500,000 Utah SGID http://gis.utah.gov/sgid-vector-download/utah-sgid-vector-gis-data-layers-by-category#Hydrology
38 Utah Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
39 Washington Stream/river great, but would help to have complete names (some features here aren't named) WA_rivers shapefile 1:100,000 WA Dept. of Ecology http://www.ecy.wa.gov/services/gis/data/data.htm
40 Washington Lake (edited and merged with WA_lakes_DOE) WA_major_lakes (and large rivers) shapefile 1:100,000 WA Dept. of Ecology http://www.ecy.wa.gov/services/gis/data/data.htm
41 Washington Lake (edited and merged with WA_major_lakes) WA_lakes_DOE shapefile 1:100,000 WA Dept. of Ecology http://www.ecy.wa.gov/services/gis/data/data.htm
42 Washington Drainage basin (HUC) I need to convert/open file (can't do it on my computer), but not sure this file is needed anyway WA_dnnet e00   GIS Data Depot data.geocomm.com
43 Washington Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
44 Wyoming Stream/river great, but it doesn't have stream names WY_rivers (major streams) shapefile 1:100,000 Wyoming GeoLibrary http://partners.wygisc.uwyo.edu/wygeolibrary/explorer.jsf
45 Wyoming Lake   WY_lakes (major waterbodies) shapefile 1:100,000 Wyoming GeoLibrary http://partners.wygisc.uwyo.edu/wygeolibrary/explorer.jsf
46 Wyoming Drainage basin (HUC)   part of lower 48 states HUC layer shapefile   GIS Data Depot data.geocomm.com
47 Yukon Territory Stream/river Edited and merged layers from website WestCanada_streams shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
48 Yukon Territory Lake Edited and merged layers from website WestCanada_lakes shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/
49 Yukon Territory Drainage basin (HUC)   canadwshed_p shapefile   GeoConnections Discovery Portal http://geodiscover.cgdi.ca/gdp/

Original layers & sources

  A B C D E
1 Extent Includes columns for mussel records Layer name Mussel species the layer is used for Notes
2 Alaska no AK_HUC   Original Alaska HUC layer
3 Canada, whole country no canadwshed   Original watershed layer for Canada
4 YT, BC, AB yes Canada_clip_blankMussel   This was clipped from the canadwshed layer
5 USA, lower 48 states no huc250k_USA   Original HUC layer for the U.S.
6 USA, western states no huc250k_western_states   All the eastern HUCs were deleted up to the ones overlapped with MT, WY, CO, and NM
7 USA, western states yes huc_clip_blankMussel   HUCs were clipped to the states (MT, WY, CO, NM) and attribute columns were added for mussel records
8 Alaska, YT, BC, AB, & lower states yes HUC_wshed_ALL_blankMussel All species Union of western states and western Canada layers
9 Alaska & YT, BC, AB yes HUC_wshed_NORTH_blankMussel   Same as canadwshed_clip, only with Alaska HUCs, and with mussel columns added
10 BC, AB, and lower states yes HUC_wshed_PART_blankMussel   Same as HUC_wshed_ALL_blankMussel, but with Alaska and YT removed
11 Oregon and overlapping watersheds no OR_watersheds_example   Layer shows subunits (watersheds) of sub basins (HUCs)

HUC folder