Mid Season Exploration Update On Eureka Project

COEUR D'ALENE, ID  - Timberline Resources Corporation reported that exploration activities at the Eureka Project in Nevada, continue in a fully funded program encompassing numerous Carlin-type gold occurrences over the 62 km2 (24 mi2) land position. An extensive drill program is underway, both to offset recent and historic high-grade (> 3 g/t Au) drill intercepts, and to test new undrilled targets. The Company's objectives are to discover additional high-grade gold in and around the current resource and to advance new targets across the district-scale property with geologic mapping, geophysics, and geochemistry.

Highlights of the 2021 exploration program to-date include: Completed approximately 23% (1,409m) of the planned reverse circulation (RC) drilling at the Eureka Project - 5 holes completed in the Lookout Mountain area; Completed a controlled source audio magnetotellurics (CSAMT) geophysics survey, spanning 19 line-kilometers along four survey lines; Commenced an induced polarization/resistivity (IP) survey - planned for 29 line-kilometers primarily in the Windfall area; Geological mapping well underway in the central Oswego Trend and northern Lookout Trend; and Completed an orientation soil survey across the Windfall Trend and approximately 700 soil geochemical samples in the northern portion of the property.

Patrick Highsmith, President & CEO, remarked on the 2021 exploration program so far, "In a mature world-class terrane like the Battle Mountain-Eureka Trend, drilling, geological mapping, geophysics, and geochemistry are key elements of a comprehensive program for gold discovery. It is gratifying to see Timberline advancing on all those fronts at Eureka. We have invested extra effort into improving the quality of our fundamental tools, including drill sampling, soil sampling, and quality control. The first five drill holes and the preliminary geophysical data we have seen are very encouraging for our growth prospects in 2021 and beyond."