The draw down at Jackson Lake is quickly taking its toll on boating at the lake with some of the marinas and ramps becoming unusable now. Park Spokesperson Jenny Anzelmo-Sarles points out that while there is now specific closing date for Colter Bay Marina, advisories are being sent out to slip and buoy holders that the bay’s depth is getting critically low. She says while the marina is not closing down per se, the boat slip will not be usable because vehicle and boat trailers would have to drive too far into the mud to pull the boats out. Consequently, once the lake level drops to 6753 feet in elevation, the boat ramp isn’t usable. Meanwhile, she says Grand Teton Lodge Company anticipates curtailing its scenic cruises next week and canoe and kayak rentals to become impossible from the bay later in the month. Boating operations at Leeks Marina and Signal Mountain Lodge will continue until the channels at those locations become too low as well. Currently, Jackson Lake is at 64% of its capacity and dropping by about four inches each day.