Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption “Experts” in this Registration Statement on Form S-4 and related Prospectus of ION Geophysical Corporation for the registration of $175,000,000 of 8.125% senior secured second priority notes due 2018 and related guarantees and to the incorporation by reference therein of our reports dated February 24, 2014 with respect to the consolidated financial statements and schedule of ION Geophysical Corporation and subsidiaries, and the effectiveness of internal control over financial reporting of ION Geophysical Corporation and subsidiaries included in its Annual Report (Form 10-K) for the year ended December 31, 2013, filed with the Securities and Exchange Commission.

	/s/ Ernst & Young LLP
Houston, Texas
February 24, 2014