Intersects 2.23 g/t Gold over 33.0 Metres at the Miller Prospect on the Goldlund Property

VANCOUVER, BC / ACCESSWIRE / February 11, 2020 / First Mining Gold Corp. ("First Mining" or the "Company") (TSX:FF) (OTCQX:FFMGF) (FRANKFURT:FMG) is pleased to announce the remaining results from the drill program completed at the Miller prospect ("Miller"). Miller forms part of the Company's wholly-owned Goldlund property ("Goldlund") in Ontario, Canada and is located 10 kilometres northeast and along strike of the current resource area at Goldlund.

Latest highlights from holes drilled at Miller include:

• Hole MI-19-040 intersected 1.35 grams per tonne gold ("g/t Au") over 59.0 metres ("m")
  • Including 2.23 g/t Au over 33.0 m and 44.07 g/t Au over 1.0 m
• Hole MI-19-034 intersected 1.62 g/t Au over 12.0 m
  • Including 18.07 g/t Au over 1.0 m

Dan Wilton, CEO of First Mining, stated "We are pleased with the results of the drill program that we have completed at Miller and believe that the results showcase the potential for Goldlund to host multiple gold deposits within close proximity of the currently defined resource area at the project. We believe we have now delineated the boundaries of mineralization at Miller to the southwest and will look to further our understanding of the extent of mineralization to the northeast, as well as potential parallel zones. Drilling on the broader property continues and is currently underway within and around the defined resource area at Goldlund ("Main Zone"). We are confident in the potential to expand the existing resource base at the Main Zone, as well as the potential to define additional resources on the property through further regional exploration."

The holes highlighted in this news release consist of the remaining step-out and infill holes drilled at Miller in 2019. In total, since drilling first commenced on the Miller prospect in 2018, a total of 40 holes (7,386 metres) have been drilled, outlining mineralization over a strike length of approximately 450 metres.

The remaining holes at Miller were drilled primarily to delineate the extent of the main mineralized zone towards the southwest, with eleven holes (MI-19-025 to MI-19-030, and MI-19-032 to MI-19-036) targeting this southwest extension. Holes MI-19-035 and MI-19-036 appear to indicate the end of this particular zone of mineralization in the southwest direction. Holes MI-19-031 and MI-19-039 were exploratory holes drilled to test potential parallel structures, and hole MI-19-040 was an infill hole in the centre of the Miller zone which encountered significant mineralization (1.35 g/t Au over 59.0 m). Holes MI-19-037 and MI-19-038 were drilled to test geophysical targets that indicated a possible northeast extension of Miller; hole MI-19-037 intercepted gold mineralization in gabbro (0.17 g/t Au over 15.0 m) which, although lower grade than that found in some of the earlier Miller holes, demonstrates that this northeast area may still be a viable target for follow-up soil and rock sampling.

The 2019 drill program at Miller consisted of 32 drill holes for a total of 6,130 metres. Drilling was completed using approximate 25 metre spacing. This news release incorporates new results from 16 of the 32 completed holes (following on from the Company's November 19, 2019 and September 25, 2019 news releases which announced the results of the previous holes from the 2019 Miller drill program).

Select assay results from the last sixteen holes of the Miller drill program are reported in the table below:

Notes:

• Assaying for the Miller drill program was completed by SGS Canada Inc. ("SGS") at their laboratory in Lakefield, Ontario. Prepared 50 g samples were analyzed for gold by lead fusion fire assay with an atomic absorption spectrometry finish. Multi-element analysis was also com pleted on selected holes by two-acid aqua regia digestion with ICP-MS and AES finish
• Reported widths are drilled core lengths; true widths are unknown at this time. Assay values are uncut
• Intervals for holes MI-19-025, MI-19-032, MI-19-034 and MI-19-040 include results of selected assay repeats. These repeats were done by screened metallic fire assay on 1 kg size samples at the SGS laboratory in Lakefield

Drill Result Details

A plan map showing the 2018 and 2019 drill hole locations at Miller can be viewed at: https://www.firstmininggold.com/_resources/maps/2020-02-11-Goldlund-NR-Plan-Map.pdf.

A complete list of the 2019 drill results to date, including hole details, can be viewed at: https://www.firstmininggold.com/_resources/maps/2020-02-11-FF-NR-Goldlund-2019-Drill-Results.pdf.

A map showing the district-scale and regional target s at Goldlund can be viewed at: https://www.firstmininggold.com/_resources/maps/2019-06-FF-Goldlund-Regional-District.pdf.

Drill Hole Locations