Roads. #70 Plan to put 4-lane section thru Glenwood Canyon dealt setback. RMN Ap 9, 1973 p.5 DOT specifies design studies for alternate routes, Cotton wood Pass and Glenwood Canyon before approving final route. Post Ap 10, 1973 p.21 Highway Dept. to extend 4-laning closer to western approach to Eisenhower Tunnel to combat icy roads in winter. Post Jy 31, 1973 p.4 Hearing on Glenwood Canyon rntit-. Past. Mr 21:, 1.974 n.15 Glenwood Canyon, Colorado route controversy erupts again main, Pnst Mr 10, 1.9?4 p.5Fl