CREATE TABLE table_67725 ("Peak" CLOB, "Elevation  ( m ) " FLOAT, "Prominence  ( m ) " FLOAT, "Isolation  ( km ) " FLOAT, "Municipality" CLOB, "County" CLOB)

What is the average Isolation in the municipality of Sunndal at an elevation of more than 1850?
SELECT AVG("Isolation (km)") FROM table_67725 WHERE "Municipality" = 'sunndal' AND "Elevation (m)" > '1850'
SELECT AVG("Isolation (km)") FROM "table_67725" WHERE "Elevation (m)" > '1850' AND "Municipality" = 'sunndal'