Beaver Brook trail starts in Golden and climbs up to around 7000 ft looking down onto Clear Creek as it moves through north forested slopes. After beautiful vistas it drops into Beaver Brook itself before climbing out to Chief Hosa.
The trail on the west side drops down into Beaver Brook, then climbs back out to the top of a 7800' peak so there is a fair amount of climb on that side. The east side if you start at Windy Gap is fairly level although there are scramble and scree piles to climb over.
The Beaver Brook trail system is easily accessed from the east, at Chimney Gulch near Golden or from Windy Gap on Lariat Loop Road or from Colorow Road at the Lookout Mountain Nature Center. From the west it can be accessed from the Stapleton Drive trail head off I-70 at the Chief Hosa.
Good on either end.