The Lewis River Hydroelectric Projects - PacifiCorp

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Park Rules: Day Use Park Regulations: Summer Hours (April 1-September 30): 5 am-9 pm PacifiCorp reserves the right to change the hours without notice. Fees: Visitors entering day use sites with vehicles must pay applicable fees. Pass holders please check in with booth attendant (if staffed). Please display passes in car windows at all times. Fees are non-transferable. Vehicles/parking: o Keep speed 10 mph or below o Stay on designated roads and paths o Park only in designated areas o Do not use ORVs and snowmobiles in recreation areas Please help us keep this park safe, clean, and enjoyable for everyone: o o o o o o o o o Do not use or possess alcohol at this site. Keep fires confined to established fireplaces, or to manufactured grills. Do not use fireworks or other explosive materials. Do not discharge firearms or other projectile devices within or near the recreation area. Respect wildlife, habitats, and other users: do not cut or otherwise damage trees or other vegetation. Do not disturb wildlife. Keep a clean camp! Place bottles, cans, paper, garbage, and other refuse in trash or recycling receptacles. Respect your neighbors. Do not use public address systems, loud music, or any other loud noise-producing devices in the day-use area. Restrain pets at all times, on leashes of not more than 6 feet in length. Put animal waste in plastic bags and take it with you or drop it in trash receptacles. Do not use this site for commercial purposes (including vending, site rentals, equipment sales or rentals, and advertising) without prior written permission of PacifiCorp. All applicable laws regarding public safety, illegal substances, sanitation, boating, fishing/hunting seasons, and fires will be enforced. Violators of park rules are subject to removal and prosecution. Policies are subject to change without notice. PacifiCorp does not accept responsibility for the safety or well-being of recreation area guests. Images: Map of Eagle Cliff Park and this region of the Lewis River, showing picnic sites and facilities. Photos of recreation. Illustrations/photos showing Klickitat Trail. Historic photo of Forest Service operations along Lewis River Trail. Forest Service logo or other modern FS image. Appendix 1: panel profiles Lewis River Draft I&E Plan page 51
Eagle Cliff Park—Interpretive Sign #1 (Natural History) Location: Size: Title: Main Content: Eagle Cliff Park TBD Watershed The western slope of the Cascade Range is a land of rain. Here, westward-facing valleys nestle like open baseball gloves in the path of Pacific rainstorms, scooping rain and snow from the sky in staggering amounts. Tumbling through waterfalls, trickling down countless tiny tributaries, or oozing steadily downhill through the soil, all of that water gradually makes its way downhill, funneled by slopes and valleys into rivers such as the Lewis. The “funnel” of land that directs water into the North Fork of the Lewis River is called its watershed. It covers some 847 square miles, extending from Woodland to the peak of Mt. Adams. Its boundaries snake their way along ridgetops including Mt. St. Helens, tracing high ground to the banks of the Columbia. A map of streams in this watershed, from the highest ridgetop streamlets to bustling torrents such as Swift Creek, looks like a map of blood vessels, branching to supply the body. Scientists gage the health of a watershed by the health of its interconnecting streams and the habitats through which they flow. In a watershed, effects move along stream pathways: a poorly-built road can wash out, choking the downstream reach with sediment. A blocked channel can close off access to an upper stream, depriving that area of fish. For the most part, the tributaries of the Lewis flow through forested land (much of the watershed is part of the Gifford Pinchot National Forest) and are quite healthy. However, increasing development along the Lewis River, poor timber harvest practices, and other human activities will always pose challenges to the health of the Lewis watershed. Sidebar: The watershed of the Lewis River’s north fork is dominated by volcanic activity. Millions of years of lava flows and violent eruptions have formed the ridges and peaks, as the Lewis has tumbled through the valley below. Repeated lahars, or volcanic mudslides, have changed the course of the Lewis and its tributaries. The most recent volcanic episode occurred in 1980, with the eruption of Mt. St. Helens. This huge explosion denuded 30 square miles of the North Fork’s watershed, sending millions of tons of ash, mud, and shattered trees down into the river. Sediments pouring into Swift Lake reduced the water’s depth at the upper end of the reservoir, and for over ten years afterwards, the reservoirs were kept at lower levels in anticipation of more mudslides. Appendix 1: panel profiles Lewis River Draft I&E Plan page 52
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The Lewis River Hydroelectric Projects - PacifiCorp

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