It's really tall weeds on an access road. I spotted 2 copperheads in less than a mile. the first was on the side and the 2nd was in the middle in the tall weeds. I'm not sure how it's safe for horses. but I left once I seen the 2nd. maybe cut the weeds by 1/2. I like undisturbed nature trails. but this is weeds on a gravel road. wear tall hiking boots for safety.