Back in the late 60's and early 70's it was mostly odd tracks.
Our own track was cinders and over 5 laps to the mile. During a rain storm all the loose cinders would be deposited in one corner. If you were running the 200M you could break in at the corner. I would go to lane 3 and if my opponent went inside me he'd get mired in the loose stuff and I'd never see him again. The 100M hurdles started on a corner!
Another track we went to was square. It was just a field with the corners marked by old tires. No lines, not even for the inside of the track. Only rule - keep the tires on your left.
We ran straightaway 200s on some tracks. Even the state meet at Franklin Park in Boston was cinder. It was in good condition so we were happy to run there.
My favorite indoor track was Cox Cage in 1971. I had seen a high jump training film with John Thomas that was taken there so when my college team was going there I was thrilled. Then I got there. It was a snowy day and the snow was coming in through the roof. It was all uneven dirt. The polo team also practiced there.
Back then we also high jumped off the grass infield at most sites. The usual landing area was sawdust. I used to tape my wrists and use my hands to break the fall. At one school we had to land on a bed mattress set on top of tires. At another they dug a pit and filled it with sand. But when it got packed down they never dug it up. So it settled. You'd be landing on solid ground that was lower than the takeoff area. My school had foam so we were spoiled. That made it so much worse when we completed at another school.
Does anyone remember the guy from Worcester Mass that developed a suction cup sole for indoor surfaces. There'd be about 50 tiny suction cups on a shoe. We used to send our high jump shoes to him and he'd resole them. When the suction cups broke down we'd just send them back to be redone. The advantage was that your plant foot wouldn't slip on indoor surfaces. I was always more secure jumping with the shoe until my junior year at the Indoor New England Championship. I ran at the bar and planted my foot, only to have the sole completely peel off my shoe - as I went flying straight into the pit.