NIGHTHAWK PROJECT DRILLING Bitterroot Resources Ltd.’s (symbol BTT, TSX-Venture Exchange) reports the results of drilling on the Nighthawk Gold/Silver Project in the Walker Lane Belt of west-central Nevada. The Company’s drilling contractors completed 2,170 metres of drilling in seven reverse

BITTERROOT RESOURCES LTD.

PO Box 91878,

West Vancouver, BC, V7V 4S4

tel 604 922 1351

www.bitterrootresources.com

NEWS RELEASE

April 28, 2026

NIGHTHAWK PROJECT DRILLING

Bitterroot Resources Ltd.’s (symbol BTT, TSX-Venture Exchange) reports the results of

drilling on the Nighthawk Gold/Silver Project in the Walker Lane Belt of west-central

Nevada.

The Company’s drilling contractors completed 2,170 metres of drilling in seven reverse

circulation drill holes spread over 8 kilometers of pediment-covered Miocene volcanics .

The targets were structurally-controlled epithermal gold/silver mineralization similar to the

adjoining Castle/Boss/Berg gold deposits. Prior targeting included prospecting,

aeromagnetic, geochemical and passive seismic surveys.

Alluvial cover thicknesses ranged from over 250 metres to 54 metres. The first two holes

were stopped before reaching bedrock. Drilling intersected Miocene andesite and rhyolite

stratigraphy in the remaining five holes. Mineralization was limited to a 44.2 metre-thick

(54.9 to 99.1 metres down hole) interval of moderately to intensely oxidized rhyolite in

vertical hole NHK 25 -RC-07, which hosted elevated levels of arsenic, antimony and

tellurium. No significant gold/silver was encountered. The future of the Nighthawk Project

will be reviewed in the coming months.

Mr. Charles Greig, M.Sc, P.Geo, is the Qualified Person responsible for the technical

content of this news release.

ON BEHALF OF THE BOARD OF DIRECTORS,

Michael S. Carr

Director and CEO

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of

the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

FORWARD LOOKING STATEMENTS: Certain statements contained in this press release may constitute

forward-looking statements under Canadian securities legislation. Generally, forward -looking information

can be identified by the use of forward -looking terminology such as “expects” or “it is expected”, or

variations of such words and phrases o r statements that certain actions, events or results “will” occur. This

document contains statements about expected or anticipated future events and/or financial results that are

forward-looking in nature and as a result, are subject to certain risks and u ncertainties, such as general

economic, market and business conditions, regulatory processes and actions, technical issues, new legislation,

competitive conditions, the uncertainties resulting from potential delays or changes in plans, the occurrence

of unexpected events and the company’s ability to execute and implement its future plans. Actual events may

differ materially from those projected in the forward -looking statements. When relying on forward -looking

statements to make decisions, investors and others should carefully consider the foregoing factors and other

uncertainties and should not place undue reliance on such forward-looking statements. The Company does

not undertake to update any forward -looking statements, except as may be required by applicable securities

laws. For such forward-looking statements, we claim the safe harbour for forward-looking statements within

the meaning of the Private Securities Legislation Reform Act of 1995.