Here are files for planning a trip up George Creek to Mt. Barnard / Trojan Peak / Mt. Williamson in May 2008, based on a trip I made in May 2006, in the Sierras near Lone Pine.
For the USGS 7.5 minute Topo quads for Williamson (for Barnard and Trojan) and Manzanar (George Creek Trailhead) see the Maps directory, with o36118f3(MtWilliamson).png and o36118f2(Manzanar).png (huge files).

The weather forecast for camping near George creek at 12,000 ft. is here

An excellent description of the route up Williamson via George Creek is http://www.summitpost.com/mountains/route_link.pl?route_id=599&object_id=297

See every last darn picture I took on the 2006 trip here. This includes very large panoramic photographs from the summits of Barnard and Trojan

      Name                                                   Last modified      Size  Description
 Parent Directory                                                            -   Folder
 Pictures/                                              2021-12-30 21:49    -   Folder
 5GeorgeCreekXingsMapAndWaypoints.png                   2008-05-21 19:07  617K  Waypoints for the 1st 5 stream crossings, May 2008
 GeorgeCreekRoute-Camps-MtWiliamsonSummitRoute11x17.doc 2008-05-07 20:31  5.8M  MS Office Word document
 GeorgeCreekCamps-MtWiliamsonSummitRoute.jpg            2008-05-04 23:39  1.4M  Picture in JPEG format
 WilliamsonViaGeorgeCreekRoute.URL                      2008-05-02 10:43   85   Windows Internet Shortcut
 BarnardTrojanGeorgeCreekWilliamson_11x17Map.png        2008-05-01 22:19  844K  Map or Picture (Portable Network Graphics file)
 SnowCourse250BIGHORN_PLATEAU.URL                       2008-04-20 22:24   77   Windows Internet Shortcut - Shows the snow depth 3.25 miles WSW from Mt. Barnard at 11350'
 ForecastAt36.58N-118.25W-Elev.10266ft.URL              2008-04-14 16:38  176   Windows Internet Shortcut
 GeorgeCreekDrivingRoute.txt                            2008-04-13 13:52  1.9K  Waypoint+ routes or text files
 HikingWaypointsAndRoadRoute.gpx                        2008-04-13 13:44  7.5K  GPS eXchange format waypoints/routes
 BarnardTrojan.tpo                                      2008-04-12 16:23  6.1K  TOPO! Region (National Geographic TOPO data file)
 BarnardTrojan.gdb                                      2008-04-12 16:23   13K  gdb - Garmin Database (MapSource)
 WaypointsCSV.txt                                       2008-04-12 16:23  3.7K  Waypoint+ routes or text files
 MyTripReport2006.txt                                   2008-04-12 15:15   12K  My 2006 Trip Report
 BarnardTrojanGeorgeCreekRoute.png                      2006-05-14 18:08  452K  map of approximate hiking route and camp - 2006 trip
 GeorgeCreekDrivingRoute.png                            2006-05-10 10:08  2.2M  Map or Picture (Portable Network Graphics file)
 BackpackList.xls                                       2006-05-10 09:18  864K  MS Office Excel Spreadsheet
 Aerial_Photos.doc                                      2006-05-04 19:13  7.0M  Aerial Photos of George Creek, Barnard and Trojan
 Barnard_Trojan_Hike_Print.doc                          2006-04-30 00:40  110K  smaller collection of hiking route descriptions for Barnard / Williamson.
 Barnard_Trojan.doc                                     2006-04-30 00:40  915K  a collection of other people's trip reports and directions
 BarnardTrojanGeorgeCreekMap.png                        2006-04-29 18:32  1.7M  large printable TOPO map - Covering Russel to Williamson