Osisko's Lynx Corridor Drilling Interpreted to Trend on to Alto's Windfall East Project, Quebec

Vancouver, British Columbia--(Newsfile Corp. - May 11, 2017) - Alto Ventures Ltd. (TSXV: ATV) is pleased to update recent developments on its Windfall East gold project in the Abitibi greenstone belt in Quebec (see Figure 1).

Further to Alto's news release of April 18, 2017, Osisko Mining Inc. ("Osisko") has reported furtherhigh grade intersections at the Lynx Zone Discovery in news releases dated April 25, May 3 and May 10, 2017. Osisko reports a new zone of mineralization, the Lynx 4, located 170 metres south of the main Lynx Corridor. Drillhole OSK-W-17-816 intersected 7.7 metres of 11.7 g/tgold on the Lynx 4 zone approximately one kilometre southwest ofAlto's 299 hectare Windfall East Property. In addition, bonanza grade mineralization of 3.7 metres grading 421 g/t gold was intersected on the Lynx 2 zone in drillhole OSK-W-17-834.

Osisko is following a northeast trending magnetic low along the Lynx Corridor with drill collars immediately adjacent to Alto's western and northern property boundary (see Figure 2). From regional geophysical interpretation and magnetic surveys on the Windfall East property, Alto interprets that a magnetic low structural corridor trends to the northeast on to the Windfall East property. Alto is reviewing its options to further explore the property and is entertaining various offers including a sale, joint venture or spinout of the property.

This news release has been reviewed and approved for technical content by Mike Koziol, P. Geo, a qualified person under the provisions of National Instrument 43-101. The information set out above on Osisko's drill results relate solely to Osisko's Lynx Zone Discovery and there are no assurances that Alto will obtain similar information from its property.

About Alto Ventures Ltd

Alto Ventures Ltd. is an exploration and development company with a portfolio of highly prospective Canadian gold and diamond properties. The Company is active in the Abitibi greenstone belt in Quebec on the Windfall East and Destiny gold properties and is exploring in the Beardmore-Geraldton gold belt in Ontario. In Manitoba, the Company is focused on the gold and base metals potential of the highly prospective but relatively under-explored Oxford Lake property.

For more details regarding the Company's projects, please visit our website at www.altoventures.com.

ON BEHALF OF THE BOARD,

Richard J. Mazur, P. Geo.,
CEO

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

For further information contact:

Mike Koziol,
President and Director
ALTO VENTURES LTD.
Unit 7 - 1351C Kelly Lake Rd
Sudbury, ON., P3E 5P5
Tel: 705-522-6372
Email: koziol@altoventures.com

Rick Mazur,
CEO and Director
ALTO VENTURES LTD.
Suite 615-800 W. Pender Street
Vancouver, BC, V6C 2V6
Tel: 604-630-1585
Email: mazur@altoventures.com

To view an enhanced version of Figure 1, please visit:
https://orders.newsfilecorp.com/files/4910/26744_a1494476797369_28.jpg

To view an enhanced version of Figure 2, please visit:
https://orders.newsfilecorp.com/files/4910/26744_a1494476798416_34.jpg