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Sheridan and BighornsBig Horn BasinNortheast WyomingJackson HoleWind River BasinCasper areaSouthwest WyomingCheyenne areaLaramie and Carbon
Wyoming: 9 regions on their counties, each in the colour it wears in the list below.

Nine regions on county lines: Jackson Hole, Southwest Wyoming, Big Horn Basin, Sheridan and Bighorns, Northeast Wyoming, Cheyenne area, Casper area, Wind River Basin and Laramie and Carbon.

In the editor each region takes a level with one click. When one region needs more detail, split it into its counties and set them one by one; merge it back when they agree.

Regions in this starter map

  • Jackson Hole1 countyTeton County
  • Southwest Wyoming4 countiesLincoln County · Sublette County · Sweetwater County · Uinta County
  • Big Horn Basin4 countiesBig Horn County · Hot Springs County · Park County · Washakie County
  • Sheridan and Bighorns2 countiesJohnson County · Sheridan County
  • Northeast Wyoming4 countiesCampbell County · Crook County · Niobrara County · Weston County
  • Cheyenne area3 countiesLaramie County · Goshen County · Platte County
  • Casper area2 countiesConverse County · Natrona County
  • Wind River Basin1 countyFremont County
  • Laramie and Carbon2 countiesAlbany County · Carbon County

County lines from the Census Bureau, coastline from Natural Earth.