Note: Each file is named using a TTTRRSSQ.zip format. TTT is the legal township, RR is the range, SS is the section, and Q is the quarter section. Quarter sections are numbered 1-4 with 1 being the northeast quarter and continuing clockwise. When the quarter section number is 0, the file contains the entire section. Examples: 13948092 is Township 139 N, Range 48 W, Section 9, SE Quarter. 13948360 is all of section 36. The .zip file contains the corresponding .tif and .tfw for each area.