They took down the billboard and even had some fun on Twitter replying to comments.
Some say the billboard makes light of the cruelties the federal government inflicted on Native Americans.
Regardless, the billboard has outraged some residents in Greeley, about 50 miles north of Denver.
But Dudley Brown, executive director of Rocky Mountain Gun Owners, told CNN he supported the billboard.
Brucker told the Tribune she thinks those behind the billboard should talk about their views openly.
"Hmmmm, " Thompson said when shown a photograph of the billboard, keeping his trademark calm.
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Kelly and Ashanti, peaked at No. 5 on the Billboard Top 100 Singles chart.
Astral Weeks never cracked the Billboard Top Albums chart when it was first released.
There were albums put together by theme instead of genre or place on the Billboard chart.
In all, she put 14 songs and six of her albums on the Billboard country charts.
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Not that it mattered much: The song wasn't exactly destined for the Billboard charts.
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Was the billboard a constructive means of calling attention to flaws in alarmist global warming theory?
That being said, there have been some curious and hypocritical reactions to the billboard.
Clarkson's All I Ever Wanted, released in March, is currently at No. 17 on the Billboard 200.
Her debut album, Some Hearts, spent 11 weeks in 2007 at the top of the Billboard album charts.
The song made it to the Billboard top 100 and was downloaded over 100, 000 times in August alone.
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Even the "Hairspray" soundtrack debuted on the Billboard 200 at No. 20 before peaking at No. 2.
Ski Dubai, the billboard read, as we descended the stairs from the plane into the 80-degree December night air.
Meanwhile, rock and roll was taking a huge tumble in the Billboard charts.
"A billboard that produces drinking water from air, " says the billboard up high.
"Quiet Nights" debuted at No. 3 on the Billboard 200 album charts last week, a career high for Krall.
Check the slideshow to see what these celebrities and more wore to the Billboard Music Awards in the slideshow.
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In February, anti-abortion group Life Always celebrated Black History Month by putting the billboard at right up in Manhattan.
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"Nine Types of Light" and 2008's "Dear Science " each peaked at No. 12 on the Billboard 200 album chart.
It took one year from release for the album to reach a high of No. 2 on the Billboard chart.
Kelly, together with Chris Smith, shot to stardom in 1992 with "Jump, " which spent eight weeks on the Billboard Hot 100.
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Did the billboard message arbitrarily lump honest and well-intentioned believers in a global warming crisis with hateful extremists in the movement?
According to The Huffington Post, the plants are expected to grow quickly and will eventually cover the entire surface of the billboard.
Rihanna's collaboration with Jay-Z and Kanye West, "Run This Town, " is currently at number 7 on the Billboard Hot 100 music chart.
Mr. McCLINTON: Yeah, and it's number one on Americano this week, number 14 in country albums and 150-something on the Billboard top 200.
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