diff --git a/.gitmodules b/.gitmodules
index 1571044487..25aedc1d40 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -28,7 +28,7 @@
 [submodule "fates"]
 path = src/fates
 url = https://github.com/samsrabin/fates
-fxtag = 60191cf4e5db9bea30170c35eb2f7ea1a6b90439  # isforest-20241016: Combine isforest functions into one.
+fxtag = aa3b3b931bbb8199c21dd175fe2b2c9ddbf67d09  # edge-area-202410: Fix and rename edge forest bin variables.
 fxrequired = AlwaysRequired
 # Standard Fork to compare to with "git fleximod test" to ensure personal forks aren't committed
 fxDONOTUSEurl = https://github.com/NCAR/fates-release
diff --git a/bld/namelist_files/namelist_defaults_ctsm.xml b/bld/namelist_files/namelist_defaults_ctsm.xml
index 24346a1f39..5982767e37 100644
--- a/bld/namelist_files/namelist_defaults_ctsm.xml
+++ b/bld/namelist_files/namelist_defaults_ctsm.xml
@@ -499,7 +499,7 @@ attributes from the config_cache.xml file (with keys converted to upper-case).
 <!-- FATES default parameter file                                       -->
 <!-- ================================================================== -->
 
-<fates_paramfile>/glade/u/home/samrabin/ctsm_fates-isforest/src/fates/parameter_files/fates_params_default.cdd58546a.nc</fates_paramfile>
+<fates_paramfile>/glade/u/home/samrabin/ctsm_fates-isforest/src/fates/parameter_files/fates_params_default.5abc67356.nc</fates_paramfile>
 
 <!-- ================================================================== -->
 <!-- Default surface roughness parameterization                         -->
diff --git a/cime_config/testdefs/testmods_dirs/clm/FatesColdAllVars/user_nl_clm b/cime_config/testdefs/testmods_dirs/clm/FatesColdAllVars/user_nl_clm
index 7ce530ca5d..c529e86927 100644
--- a/cime_config/testdefs/testmods_dirs/clm/FatesColdAllVars/user_nl_clm
+++ b/cime_config/testdefs/testmods_dirs/clm/FatesColdAllVars/user_nl_clm
@@ -63,4 +63,4 @@ hist_fincl1       = 'FATES_TLONGTERM',
 'FATES_IS_FOREST_PCT10', 'FATES_IS_FOREST_PCT10_0GRASS', 'FATES_IS_FOREST_PCT25',
 'FATES_IS_FOREST_PCT25_0GRASS', 'FATES_IS_FOREST_PCT50', 'FATES_IS_FOREST_PCT50_0GRASS',
 'FATES_IS_FOREST_PCT75', 'FATES_IS_FOREST_PCT75_0GRASS', 'FATES_IS_FOREST_PCT90',
-'FATES_IS_FOREST_PCT90_0GRASS'
+'FATES_IS_FOREST_PCT90_0GRASS', 'FATES_FOREST_AREA_EB'
diff --git a/src/fates b/src/fates
index 60191cf4e5..aa3b3b931b 160000
--- a/src/fates
+++ b/src/fates
@@ -1 +1 @@
-Subproject commit 60191cf4e5db9bea30170c35eb2f7ea1a6b90439
+Subproject commit aa3b3b931bbb8199c21dd175fe2b2c9ddbf67d09
diff --git a/src/main/histFileMod.F90 b/src/main/histFileMod.F90
index 8ae4ace7e3..30c55f29be 100644
--- a/src/main/histFileMod.F90
+++ b/src/main/histFileMod.F90
@@ -25,6 +25,7 @@ module histFileMod
   use EDParamsMod    , only : nclmax
   use EDParamsMod    , only : nlevleaf
   use FatesInterfaceTypesMod , only : nlevsclass, nlevage, nlevcoage
+  use FatesInterfaceTypesMod , only : nlevedgeforest
   use FatesInterfaceTypesMod , only : nlevheight
   use FatesInterfaceTypesMod , only : nlevdamage
   use FatesConstantsMod      , only : n_landuse_cats
@@ -2500,6 +2501,7 @@ subroutine htape_create (t, histrest)
        call ncd_defdim(lnfid, 'fates_levcacls', nlevcoage, dimid)
        call ncd_defdim(lnfid, 'fates_levpft', numpft_fates, dimid)
        call ncd_defdim(lnfid, 'fates_levage', nlevage, dimid)
+       call ncd_defdim(lnfid, 'fates_levedge', nlevedgeforest, dimid)
        call ncd_defdim(lnfid, 'fates_levheight', nlevheight, dimid)
        call ncd_defdim(lnfid, 'fates_levfuel', nfsc, dimid)
        call ncd_defdim(lnfid, 'fates_levcwdsc', ncwd, dimid)
@@ -3041,6 +3043,7 @@ subroutine htape_timeconst(t, mode)
     use FatesInterfaceTypesMod, only : fates_hdim_pfmap_levcapf
     use FatesInterfaceTypesMod, only : fates_hdim_camap_levcapf
     use FatesInterfaceTypesMod, only : fates_hdim_levage
+    use FatesInterfaceTypesMod, only : fates_hdim_levedge
     use FatesInterfaceTypesMod, only : fates_hdim_levheight
     use FatesInterfaceTypesMod, only : fates_hdim_levpft
     use FatesInterfaceTypesMod, only : fates_hdim_scmap_levscag
@@ -3191,6 +3194,8 @@ subroutine htape_timeconst(t, mode)
                   long_name='FATES cohort age index of the combined pft-cohort age dimension', units='-', ncid=nfid(t))
              call ncd_defvar(varname='fates_levage',xtype=tape(t)%ncprec, dim1name='fates_levage', &
                   long_name='FATES patch age (yr)', ncid=nfid(t))
+             call ncd_defvar(varname='fates_levedge',xtype=tape(t)%ncprec, dim1name='fates_levedge', &
+                  long_name='FATES edge number', ncid=nfid(t))
              call ncd_defvar(varname='fates_levheight',xtype=tape(t)%ncprec, dim1name='fates_levheight', &
                   long_name='FATES height (m)', ncid=nfid(t))
              call ncd_defvar(varname='fates_levpft',xtype=ncd_int, dim1name='fates_levpft', &
@@ -3304,6 +3309,7 @@ subroutine htape_timeconst(t, mode)
              call ncd_io(varname='fates_pftmap_levcapf',data=fates_hdim_pfmap_levcapf, ncid=nfid(t), flag='write')
              call ncd_io(varname='fates_camap_levcapf',data=fates_hdim_camap_levcapf, ncid=nfid(t), flag='write')
              call ncd_io(varname='fates_levage',data=fates_hdim_levage, ncid=nfid(t), flag='write')
+             call ncd_io(varname='fates_levedge',data=fates_hdim_levedge, ncid=nfid(t), flag='write')
              call ncd_io(varname='fates_levheight',data=fates_hdim_levheight, ncid=nfid(t), flag='write')
              call ncd_io(varname='fates_levpft',data=fates_hdim_levpft, ncid=nfid(t), flag='write')
              call ncd_io(varname='fates_levfuel',data=fates_hdim_levfuel, ncid=nfid(t), flag='write')
@@ -5589,6 +5595,8 @@ subroutine hist_addfld2d (fname, type2d, units, avgflag, long_name, type1d_out,
        num2d = numpft_fates
     case ('fates_levage')
        num2d = nlevage
+    case ('fates_levedge')
+       num2d = nlevedgeforest
     case ('fates_levheight')
        num2d = nlevheight
     case ('fates_levfuel')
diff --git a/src/utils/clmfates_interfaceMod.F90 b/src/utils/clmfates_interfaceMod.F90
index e3e7644b90..b714dcd897 100644
--- a/src/utils/clmfates_interfaceMod.F90
+++ b/src/utils/clmfates_interfaceMod.F90
@@ -3284,6 +3284,7 @@ subroutine init_history_io(this,bounds_proc)
    use FatesIOVariableKindMod, only : site_elcwd_r8, site_elage_r8, site_agefuel_r8
    use FatesIOVariableKindMod, only : site_cdpf_r8, site_cdsc_r8, site_clscpf_r8
    use FatesIOVariableKindMod, only : site_landuse_r8, site_lulu_r8
+   use FatesIOVariableKindMod, only : site_edgebin_r8
    use FatesIODimensionsMod, only : fates_bounds_type
 
 
@@ -3389,7 +3390,7 @@ subroutine init_history_io(this,bounds_proc)
              site_scagpft_r8, site_agepft_r8, site_elem_r8, site_elpft_r8, &
              site_elcwd_r8, site_elage_r8, site_agefuel_r8, &
              site_cdsc_r8, site_cdpf_r8, &
-             site_landuse_r8, site_lulu_r8)
+             site_landuse_r8, site_lulu_r8, site_edgebin_r8)
 
 
            d_index = fates_hist%dim_kinds(dk_index)%dim2_index
@@ -3646,6 +3647,7 @@ subroutine hlm_bounds_to_fates_bounds(hlm, fates)
 
    use FatesIODimensionsMod,   only : fates_bounds_type
    use FatesInterfaceTypesMod, only : nlevsclass, nlevage, nlevcoage
+   use FatesInterfaceTypesMod, only : nlevedgeforest
    use FatesInterfaceTypesMod, only : nlevheight
    use FatesInterfaceTypesMod, only : nlevdamage
    use FatesLitterMod,         only : nfsc
@@ -3687,6 +3689,9 @@ subroutine hlm_bounds_to_fates_bounds(hlm, fates)
    fates%age_class_begin = 1
    fates%age_class_end = nlevage
 
+   fates%edgeforest_class_begin = 1
+   fates%edgeforest_class_end = nlevedgeforest
+
    fates%height_begin = 1
    fates%height_end = nlevheight