By Anica Padilla

RANGELY, Colo. (CBS4) — Earlier this month, the Bureau of Land Management began the largest roundup of wild horses in the history of Colorado — and it’s all due to the extreme drought in western Colorado.

The drought is so extreme over there that the wild horse herds don’t have enough water to sustain them.

So far, the BLM has captured at least 303 horses.

FILE: Wild horses in the Sand Wash herd management area located 45 miles west of Craig, Colorado, in the Sand Wash Basin. (credit: Joe Amon/Getty Images)

“The next closest was 10 years ago in a roundup east of Colorado Highway 139 in the Piceance East Douglas Herd Management Area, in which 276 horses were gathered,” the Steamboat Pilot reported.

The captured horses will be made available for adoption.

Read more from the Steamboat Pilot.

UPDATE: Colorado Governor Asks Feds To Hold Off On Planned Wild Horse Roundup In Sand Wash Basin

Anica Padilla