Kinder Morgan has recently filed updated draft “Resource Reports” with the Federal Energy Regulatory Commission. Previously, only 2 of the 13 reports (general description and alternatives) were available.
http://elibrary.ferc.gov/idmws/file_list.asp?accession_num=20150313-5090
The filing also includes much more detailed maps of the project area. Please find a direct link to this particular map book below.
http://elibrary.ferc.gov/idmws/common/OpenNat.asp?fileID=13800890