The 575 repeater is a Motorola MSF5000 providing approximately 75 watts after the duplexers.  The 575 box is mounted atop of the WCARC 146.940 machine which is a modified Motorola MSR2000.  A section of the 94 PA is visible in the above picture.
Grand Mesa Repeater Association

Blackridge Site- 449.575 131.8 PL
The Blackridge Site is located in Mesa County southwest of Grand Junction.  575 resides in a building that used to house paging equipment until the company went out of business.  The building was then donated to the Western Colorado Amatuer Radio Club who now owns the property.  575 is co-located with the WCARC 2 meter repeater which is on 146.940 with a PL of 107.2.  Blackridge provides linking to the Mt. Calahan site in western Garfield County and also to Waterdog Peak in Montrose County.  Blackridge receives its link from the Grand Mesa.