The runnable range is a wild SWAG and should be used with caution. If you run this, please add a comment or report, so that we can develop a correlation.
Upstream our listed put-in, it is (approximately) 14 river-miles to the prior listed section. While this intervening section of river might certainly be paddled, it has much less interest from a whitewater perspective than our two listed sections (I.E., it contains almost no true rapids). Much of that distance is very rural, but nearly 1.5 miles will be flanked by Columbia Hills Golf Club, and more than a quarter-mile (near the end) viewing the extensive greenhouses of Casa Verde Growers.