+
+# State-specific folders.
+DC_ROOT=$(TIGER_ROOT)/11_DISTRICT_OF_COLUMBIA
+MD_ROOT=$(TIGER_ROOT)/24_MARYLAND
+VA_ROOT=$(TIGER_ROOT)/51_VIRGINIA
+PA_ROOT=$(TIGER_ROOT)/42_PENNSYLVANIA
+NY_ROOT=$(TIGER_ROOT)/36_NEW_YORK
+
+# URLs for the TIGER/Line block-level shapefiles.
+DC_BLOCKS_URL=$(DC_ROOT)/tl_2009_11_tabblock00.zip
+MD_BLOCKS_URL=$(MD_ROOT)/tl_2009_24_tabblock00.zip
+VA_BLOCKS_URL=$(VA_ROOT)/tl_2009_51_tabblock00.zip
+PA_BLOCKS_URL=$(PA_ROOT)/tl_2009_42_tabblock00.zip
+NY_BLOCKS_URL=$(NY_ROOT)/tl_2009_36_tabblock00.zip
+
+# URLs for the DC county all-lines shapefiles.
+# D.C. just has one Census county.
+DC_LINES_URL=$(DC_ROOT)/11001_District_of_Columbia/tl_2009_11001_edges.zip
+
+# This is where it gets ugly.
+#
+# URLs for the MD county all-lines shapefiles.
+ALLEGANY_LINES_URL=$(MD_ROOT)/24001_Allegany_County/tl_2009_24001_edges.zip
+ANNE_ARUNDEL_LINES_URL=$(MD_ROOT)/24003_Anne_Arundel_County/tl_2009_24003_edges.zip
+BALTIMORE_CO_LINES_URL=$(MD_ROOT)/24005_Baltimore_County/tl_2009_24005_edges.zip
+BALTIMORE_CI_LINES_URL=$(MD_ROOT)/24510_Baltimore_city/tl_2009_24510_edges.zip
+CALVERT_LINES_URL=$(MD_ROOT)/24009_Calvert_County/tl_2009_24009_edges.zip
+CAROLINE_LINES_URL=$(MD_ROOT)/24011_Caroline_County/tl_2009_24011_edges.zip
+CARROLL_LINES_URL=$(MD_ROOT)/24013_Carroll_County/tl_2009_24013_edges.zip
+CECIL_LINES_URL=$(MD_ROOT)/24015_Cecil_County/tl_2009_24015_edges.zip
+CHARLES_LINES_URL=$(MD_ROOT)/24017_Charles_County/tl_2009_24017_edges.zip
+DORCHESTER_LINES_URL=$(MD_ROOT)/24019_Dorchester_County/tl_2009_24019_edges.zip
+FREDERICK_LINES_URL=$(MD_ROOT)/24021_Frederick_County/tl_2009_24021_edges.zip
+GARRETT_LINES_URL=$(MD_ROOT)/24023_Garrett_County/tl_2009_24023_edges.zip
+HARFORD_LINES_URL=$(MD_ROOT)/24025_Harford_County/tl_2009_24025_edges.zip
+HOWARD_LINES_URL=$(MD_ROOT)/24027_Howard_County/tl_2009_24027_edges.zip
+KENT_LINES_URL=$(MD_ROOT)/24029_Kent_County/tl_2009_24029_edges.zip
+MONTGOMERY_LINES_URL=$(MD_ROOT)/24031_Montgomery_County/tl_2009_24031_edges.zip
+PRINCE_GEORGES_LINES_URL=$(MD_ROOT)/24033_Prince_Georges_County/tl_2009_24033_edges.zip
+QUEEN_ANNES_LINES_URL=$(MD_ROOT)/24035_Queen_Annes_County/tl_2009_24035_edges.zip
+ST_MARYS_LINES_URL=$(MD_ROOT)/24037_St_Marys_County/tl_2009_24037_edges.zip
+SOMERSET_LINES_URL=$(MD_ROOT)/24039_Somerset_County/tl_2009_24039_edges.zip
+TALBOT_LINES_URL=$(MD_ROOT)/24041_Talbot_County/tl_2009_24041_edges.zip
+WASHINGTON_LINES_URL=$(MD_ROOT)/24043_Washington_County/tl_2009_24043_edges.zip
+WICOMICO_LINES_URL=$(MD_ROOT)/24045_Wicomico_County/tl_2009_24045_edges.zip
+WORCESTER_LINES_URL=$(MD_ROOT)/24047_Worcester_County/tl_2009_24047_edges.zip
+