map error

Hello. I'm trying to plot data over Wisconsin only, with the other
states left empty,
and the map including the WI counties. But I get this error, when
using Ncarg4_1
and Earth.2. Any idea how to get around this?

Thanks, Michael

Error message:
warning:MapV41DHUpdateDrawList: invalid boundary specification
string: "allusstates"
warning:MapV41DHUpdateDrawList: invalid boundary specification
string: "us-wisconsin"

   res = True
   res_at_gsnDraw = False
   res_at_gsnFrame = False
   res_at_cnFillOn = True
   res_at_cnLinesOn = False
   res_at_cnLevelSelectionMode = "ExplicitLevels"
   res_at_cnLevels = (/-1.05,-.7,-.35,0.,.35,.7,1.05/)
   res_at_cnFillColors=(/44,78,100,130,176,188,203,237/)
   res_at_tiMainFontHeightF = 0.035
   res_at_tmYROn = False
   res_at_tmXTOn = False
   res_at_pmLabelBarDisplayMode = True
   res_at_lbOrientation = "vertical"
   res_at_mpMinLatF = min(lat)
   res_at_mpMaxLatF = max(lat)
   res_at_mpMinLonF = min(lon)
   res_at_mpMaxLonF = max(lon)
   res_at_mpCenterLonF = avg(lon)
   res_at_mpOutlineBoundarySets = "AllBoundaries"
   res_at_mpGeophysicalLineThicknessF = 2.5
   res_at_gsnAddCyclic=False
   res_at_cnFillDrawOrder = "PreDraw"
   res_at_mpInlandWaterFillColor = 238
   res_at_mpLandFillColor = -1
   res_at_mpDataBaseVersion = "Ncarg4_1"
   res_at_mpDataSetName = "Earth..2"

   mask_areas = "US-" + (/"Wisconsin"/)
   res_at_mpFillDrawOrder = "PostDraw"
   res_at_mpFillAreaSpecifiers = (/"AllUSStates","Land","Water"/)
   res_at_mpSpecifiedFillColors = (/"white","white","white"/)
   res_at_mpMaskAreaSpecifiers = mask_areas

   res_at_mpUSStateLineThicknessF=2.5
   res_at_tiMainString = "Ann Avg T(C) Obs 1950-2007"
   plot(0) = gsn_csm_contour_map_ce(wks,trendavg, res)

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Received on Wed Jun 24 2009 - 14:07:54 MDT