The document reads: "The issue of this ITT in no way commits the Secretary of State to award the TRSP to any person or party.
"The Secretary of State reserves the right to terminate the competition, to award the TRSP without prior notice, to change the basis, the procedures and the timescales set out or referred to in this document or to reject any or all Proposals and to terminate discussions with any or all Bidders at any time."
A spokesman said: "The purpose of the Important Notice in the 2008 TRSP ITT is to allow minor changes.
We surveyed Camp Tecumseh Young Men's Christian Association (CT; 40[degrees]36'31"N, 86[degrees]46'10"W), Chain O' Lakes State Park (CLSP; 41[degrees]19'59"N, 85[degrees]22'50"W), Pigeon River Fish and Wildlife Area (PRFWA; 41[degrees]40'40"N, 85[degrees]15'12"W), Prophetstown State Park (PSP; 40[degrees]30'0" N, 86[degrees]50'0"W), and Tippecanoe River State Park (TRSP; 41[degrees]07'20"N, 86[degrees]34'59"W).
We conducted surveys at CT, PSP, and TRSP from July 2014 to December 2015 and at CLSP and PRFWA from January 2015 to December 2015.