Casper Police Department

A Colorado man pleaded not guilty in district court on Friday to two counts of first-degree sexual assault against a woman at Alcova Lake.

Levi Keller entered his plea before Natrona County District Court Judge Daniel Forgey.

Friday, Forgey reduced Keller's bond from $150,000 to $50,000.

A trial date will be set later.

If convicted, Keller faces between five and 50 years behind bars on each count.

He was arrested in September by sheriff's deputies after the alleged victim identified him as her assailant.

On Sept. 8, Keller and two friends drove from Colorado to stay at a cabin owned by one of the friends, according to court records.

The victim and her friends drove from Colorado a day later.

Keller and the victim were watching TV. He is accused of plying the victim with a combination of alcoholic beverages and energy drinks.

She had never been intoxicated before and never had sex before, according to court documents.

The victim passed out and woke up repeatedly and asked Keller to stop assaulting her.

She escaped and was picked up by two men driving along Wyoming Highway 220 who dropped her off at Sloan's General Store.

These two good samaritans were later located by the sheriff's office.