Question: Name the slope length for 1966 groundstation
SQL: SELECT COUNT("slope length") FROM "1-17814458-1" WHERE "elevation groundstation" = 1966.0;

Question: Name the name or route for slope length being 336
SQL: SELECT "Name or route" FROM "1-17814458-1" WHERE "slope length" = 336.0;

Question: Name the slope length for gondola
SQL: SELECT MIN("slope length") FROM "1-17814458-1" WHERE "type" = 'gondola';

Question: Name the least capacity for persons hour for 1983
SQL: SELECT MIN("capacity in persons/hour") FROM "1-17814458-1" WHERE "construction year(s)" = '1983';