Location
(1329) Susitna River is on the North side of Cook Inlet 22 miles (35 km) North-East of North Foreland. Mount Susitna, a prominent landmark along the upper part of the inlet, is about 6 miles (10 km) West of the Susitna River at a point 13 miles (21 km) above the mouth.
(1330) The channels across the flats at the mouth of Susitna River have depths of 2 feet (610 mm) or less at low water and change during the winter and spring because of ice and freshet action. The channels above the mouth are said to change frequently in the spring and early summer.
(1331) Launches navigate Susitna River to Yentna River, about 20 miles (32 km) above Cook Inlet, thence run occasionally up the Yentna River to the forks about 65 miles (105 km) from the Susitna River. The tides are not felt more than 7 miles (11 km) from the inlet, and above this the current is swift. Overhead power cables with a least clearance of 37 feet (11 m) cross the Susitna River about 5 miles (8 km) above its mouth.
(1332) Alexander, Alaska is a small settlement on the west side of Susitna River 10 miles (16 km) above the mouth. Susitna, Alaska is on the East side 18 miles (29 km) above the mouth and just below the mouth of the Yentna River; launches run to and from Anchorage, Alaska. Mail is delivered to both settlements twice monthly by airplane from Anchorage, Alaska.
(1333) Susitna Flats lies between big Susitna River and Little Susitna River and to the East of the latter.
Susitna Flats Light 61°15′10″N 150°29′17″W / 61.25278°N 150.48806°W / 61.25278; -150.48806, 19 feet (5.8 m) above the water, is shown from a skeleton tower and is equipped with a racon.
(1334) Little Susitna River, 9 miles (14 km) West of Point MacKenzie, is said to be navigable for landing craft and skiffs at high water for about 8 miles (13 km).
(1335) Caution: the depths offshore and in the approach to Little Susitna River are subject to drastic and continual change.
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