Don’t look now, but Colorado isn’t the only undefeated nationally ranked college football team in the Centennial State. No. 2 Colorado School of Mines maintained its perfect start to the season by rallying from an 11-point halftime deficit to take down No. 4 Angelo State, 31-21, in San Angelo, Texas, on Saturday. The Orediggers scored 21 points in the fourth quarter, including a pair of Landon Walker touchdown runs and John Matocha’s 84-yard scoring strike to Max McLeod that put Mines (2-0) ahead for good. Walker and Noah Roper combined for 113 yards and three rushing TDs, all coming in the second half, and McLeod had a game-high 147 yards receiving in the Orediggers’ second straight win over a top-five opponent. Punter Blake Doud followed up last week’s specialist of the week performance in a win over then-No.