EX-16.1 2 ex16-1.htm EX 16.1 - LETTER FROM PKF DATED AUGUST 7, 2007 EX 16.1 - Letter From PKF Dated August 7, 2007




August 7, 2007


Securities and Exchange Commission
450 Fifth Street, NW
Washington, DC 20549

Commissioners:

We have read Analytical Surveys, Inc.’s statements included under Item 4.01 of its Form 8-K/A filed on August 7, 2007, and agree with such statements concerning our firm.

We have no basis to agree or disagree with statements pertaining to the successor auditors.

Pannell Kerr Forster of Texas, P.C.