LAS VEGAS (KLAS) — Smallmouth bass just lost one of their favorite places to spawn in the Colorado River below Glen Canyon Dam, according to a Thursday news release from the National Park Service.

The water is moving again and the temperature is cooling down 3.5 miles past the dam after workers cleared a shallow slough where the river splits around a sandbar. The site, about 12 river miles upstream of Lees Ferry, Arizona, is the latest battleground in fighting the invasive smallmouth bass, which presents a threat to the humpback chub, which is federally protected.

The ongoing drought in the Southwest U.S. has contributed to lower elevations at Lake Powell, and warmer water from the surface is closer to the dam's intakes. That's providing a way for the fish to get through the dam and esta

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