Forbes Park in Costilla County Colorado Today I received my property owners newsletter from the Forbes Park Association via email. My husband and I have owned land in Forbes Park Colorado now for about 5 years and so I thought I would let you know a little about it and our plans for our lot. I also looked here on Active Rain and found there were no posts for Forbes Park so here we go. Forbes Park is a private park, located in the Sangre de Cristo Mountains in Costilla County Colorado. Forbes, Inc. developed the area and began selling lots in 1977. About five years later the lots were sold out. There are 3,346 lots; they range in size from 1 to 14 acres. The Park encompasses approximately 13,046 acres. Approximately 8,000 acres are comprised of owned lots; the rest of the acreage is Comm... 10/10/2010