It's sort of listed on here...but I'll try to summarize the REAL Colorado ng equipment at Knotts.
They have two C-19s...RGS 41 and D&RGW 340. They originally purchased a 2-8-2 as well...K-27 2-8-2 #464. The 464 was too big for their line, so they sold it and she now operates on the Huckleberry RR near Flint, Mi.
The galloping goose, #3, is one of three that were rebuilt with Waynes Bus bodies and immortalized by Precision Craft Models. They typically run it during the week and during the offseason...2-8-0s during weekends. They have replaced the engine in it twice, IIRC, with one of the replacements going to Colorado to help a sister run (only the Telluride Goose isn't operational).
The centerpiece of the collection is the Edna...the last Rio Grande Southern business car. (the Rico at Golden was in MOW service)
I can't recall exactly, but IIRC, they have 1 RGS coach and 1 RGS caboose...and then several D&RGW coaches and freight cars. Unlike the Durango & Silverton, all of the Knotts cars are authentic (some of the D&S cars are replicas...some with steel sides milled to look authentic).
IMO, they have taste in how to paint their equipment, as they have recently repainted it to the correct paint schemes...including a green boiler on 340.