DENVER -- A Fort Collins man has apologized after he used a felt-tip pin to write his full name and e-mail address on a boulder on Mount Elbert.

Lewis Daugherty said he was especially sorry after members of an online forum on the Web site 14ers.com started blasting him as a "moron" and planned to "get him so drunk that he passes out, and then everyone can jump out of the bushes and draw obscene things on him with a magic marker."

Daugherty told the Summit Daily News he left his full name and e-mail address on a boulder after climbing Colorado's highest peak.

“I didn’t really know it was technically illegal,” Daugherty told the News. “It was my first fourteener. It was a long hike. I was so happy I made it. I saw two other ones up there, and I just wanted to leave my mark. I didn’t know exactly it was wrong, and common sense-wise, I didn’t think about it.”

But soon after Daugherty descended the mountain, comments started pouring into the forum.

“It was creepy,” he said. “Within seven hours, they knew everything about me except my Social Security number … Somebody even sent an e-mail to my boss.”

Daugherty said he posted a message promising to go back and clean up the graffiti. “I went back up there and tried to clean it off and turned over the boulder,” Daugherty said.

He said the second hike helped him to gain an appreciation for Colorado's mountain beauty, as well as hiking etiquette.

“I moved here from Kansas nine years ago. I thought it was just fun, going on hikes … I learned that there’s a lot more to it. People really care,” he said. “I didn’t know about Leave No Trace. Now that I’ve read it and understand it, it’s brilliant.”