diff --git a/pyspedas/themis/ground/gmag.py b/pyspedas/themis/ground/gmag.py
index 0cc27a3f..0475931c 100644
--- a/pyspedas/themis/ground/gmag.py
+++ b/pyspedas/themis/ground/gmag.py
@@ -72,7 +72,7 @@ def gmag(trange=['2007-03-23', '2007-03-24'],
     """
 
     if sites is None:
-        thm_sites = 'atha chbg ekat fsim fsmi fykn gbay glyn gill inuv kapu '\
+        thm_sites = 'idx atha chbg ekat fsim fsmi fykn gbay glyn gill inuv kapu '\
                      'kian kuuj mcgr nrsq pgeo pina rank snap snkq tpas whit '\
                      'yknf'.split(' ')
         tgo_sites = ['nal', 'lyr', 'hop', 'bjn', 'nor', 'sor', 'tro', 'and',
diff --git a/pyspedas/themis/load.py b/pyspedas/themis/load.py
index 1ec921f2..99bcb6a5 100644
--- a/pyspedas/themis/load.py
+++ b/pyspedas/themis/load.py
@@ -163,7 +163,10 @@ def load(trange=['2013-11-5', '2013-11-6'],
             else:
                 pathformat = []
                 for site, in_greenland in zip(stations, greenland):
-                    if in_greenland:
+                    if site == 'idx':
+                        # THEMIS GMAG index files are only L1
+                        pathformat.append('thg/l1/mag/idx/%Y/thg_l1_idx_%Y%m%d_v??.cdf')
+                    elif in_greenland:
                         pathformat.append('thg/greenland_gmag/' + level
                                           + '/' + site + '/%Y/thg_' + level
                                           + '_mag_' + site + '_%Y%m%d_v??.cdf')