Monserate is not for beginners. I recommend hiking footwear to decrease risk of injury though I saw several in tennis shoes. There are washout areas along the trail and the terrain is rocky. I saw two guys running this trail but leave that to the experts. It was a busy Saturday morning with lots of dogs. I saw several piles of poo on the trail unfortunately. We did the 3.9mi loop in 2.5 hours, with a 15 min. summit time. You have the opportunity to make the trail longer by using the fire road along the water tower, among other paths. The incline makes for great for short training hikes, as well as the convenient location right off I-15, with plenty of parking. No facilities, no shade (except the NW side early am), bring water.
boo r. on Monserate Mountain Trail
Not much for looks but this is a great workout. There is up to 1600 ft elev gain depending on the route you take. Don't try this if you haven't hiked recently or are a beginner. It can gain over 600 ft elev in the first mile!! If you want to train for Sierra mountains trips do this 2-3 times a week for a couple months. When you can summit the long route in under 50 minutes you will be ready to rock and roll!!
It can get hot!! so bring water and electrolytes and wear shoes with good traction. Also go early or late in the summer. There are also some beautiful sunsets at certain times of the year
Great hike right off the 15 freeway. I often do this hike on my way home from work. Its a tough one right from the beginning......a definite leg burner. The views are amazing from every vantage. I highly recommend going early in the day or later in the day to avoid the heat.