“Black Water” to #1 in the U.S. (or, at least had a hand in it):

“From 11 September 1974 WROV-AM in Roanoke VA began airing "Black Water" off the album What Were Once Vices... - the Blackwater, a Roanoke River tributary, is a 25-minute drive from Roanoke city center - with listener response so positive as to cause music director Chuck Holloway to opine: "No one was requesting anything else."

[9] Hampton Roads broadcaster WQRK-FM was soon also airing "Black Water", and the track's intense regional success came to the attention of Warner Bros. national promotion director Gary Davis causing an A-side single release of "Black Water" in October 1974, five weeks after WROV had begun airing the track [9] ("Song to See You Through", a Tom Johnston composition off What Once Were Vices..., was utilized as B-side).

"Black Water" had its first major market breakout in the Twin Cities area, being reported as an add-on by KDWB [9] in the 23 November 1974 issue of Billboard. Reaching #1 on the Billboard Hot 100 dated 15 March 1975, "Black Water" is one of the few records by any act released as a B-side to another Hot 100 hit before topping the Hot 100 itself. In the Billboard ranking of Hot 100 hits for the year 1975 "Black Water" would rank at #15.[10]”