"[M]any miles of trails, ranging from doubletrack service roads to steep and technical freeride and downhill trails, plus a jumps park and new skills park." (http://skipajarito.com/biking.php) The trails range from XC to steep surly downhill. Grab a map, then pedal or take the lift (buy ticket first) to the top. Work your way down on an XC trail or progress your bike handling skills on the FR trails. Mother's Milk is super sweet. Trails are well marked. The black diamond trails really do require some bike handling skills. The body is always done riding before the soul is here.
Review: Pajarito is a very small mountain with one lift for bikes and people. The terrain is very natural and good. You won't find berms with manacured table tops here. The place is all about natural terrain with the occasional skinny/log ride and jump.