While elk hunting in Colorado earlier this fall, Trevor Brown said he kept hearing rustling in bushes behind him. His first assumption is that it was a deer or elk.

When Brown finally got up to stretch out and investigate, he found himself in a stand off with a mountain lion that was 10 feet away. The mountain lion was hissing and staring right at Brown.

While Brown carries a gun with him while bow hunting, it wasn't nearby. Instead he trusted his bow and arrow. His shot went through the mountain lion and staved off the attack — Brown said the Colorado Parks and Wildlife investigation ruled it was self-defense.

Brown was lucky he reacted as quickly and decisively as he did.

Brown shared video and a Facebook post of the incident.

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