DOCSLIB.ORG

Environmental Assessment Marysville Irrigation Company Gravity

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Environmental Assessment Marysville Irrigation Company Gravity United States Department of Agriculture Environmental Assessment Natural Resources Conservation Service Marysville Irrigation Company Marysville Irrigation Company Gravity Pressurized Yellowstone Soil Irrigation Delivery System Conservation District Fremont County, Idaho May 2007 Environmental Assessment Marysville Irrigation Company Gravity Pressurized Irrigation Delivery System Prepared For the Marysville Irrigation Company In Cooperation With The Yellowstone Soil Conservation District By The USDA - Natural Resources Conservation Service May 2007 Environmental Assessment Marysville Irrigation Company Gravity Pressurized Irrigation Delivery System Fremont County, Idaho May 2007 Abstract: This Environmental Assessment (EA) addresses the effects of replacing an open ditch irrigation delivery system with buried plastic pipelines to distribute gravity pressurized irrigation water. The document analyzes the proposed action and the no action alternatives. The proposed action includes the construction, operation and maintenance of three plastic pipelines that provide for the delivery of gravity pressurized irrigation water to approximately 6,130 acres surrounding Marysville, Idaho, eliminating most of the need for pumping powered by electric motors. Approximately 1,000 acres would require booster pumps. Water would only be drawn from the pipe when irrigation is required, eliminating overflow to the Henry’s Fork River. The proposed action would eliminate about 90% of the water seepage loss from the canals and would eliminate the need for approximately 1,600 horsepower from electric pump motors. The document describes the effects of two alternatives on ecological, aesthetic, historic, cultural, economic, social, and health conditions. A cost benefit analysis using Principles and Guidelines was completed. This document fulfills requirements of the National Environmental Policy Act (NEPA), and the Natural Resources Conservation Service - National Environmental Compliance Handbook. This document was prepared under the authority of Public Law 46, as amended (16 U.S.C. 590a-f), 42 U.S.C. 4321 et seq.; 7CFR 650.11 (b) 3; and in accordance with the National Environmental Policy Act of 1969, Public Law 91-190, as amended (42 U.S.C. 4321 et seq.). Prepared by: United States Department of Agriculture Natural Resources Conservation Service 9173 West Barnes Drive, Suite C Boise, ID 83709-1574 For the Marysville Irrigation Company P. O. Box 307 Ashton, Idaho 83420 In Cooperation with the Yellowstone Soil Conservation District 315 East 5th North St. Anthony, ID 83445-1626 For additional information contact: Richard Sims, State Conservationist U.S. Department of Agriculture, Natural Resources Conservation Service 9173 W. Barnes Suite C, Boise, Idaho 83709-1555 Telephone (208) 378-5700, FAX (208) 378-5735, or email to [email protected] The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. Table of Contents 1 PURPOSE AND NEED FOR ACTION...........................................................................................................1 1.1 INTRODUCTION............................................................................................................................................1 1.2 PURPOSE AND NEED FOR ACTION................................................................................................................2 1.3 AGENCY AND SPONSOR ROLES ....................................................................................................................2 1.4 LOCATION AND BACKGROUND ....................................................................................................................2 1.5 HISTORICAL OVERVIEW ..............................................................................................................................2 1.6 SUMMARY OF SCOPING........................................................................................................................2 2 ALTERNATIVES ..............................................................................................................................................5 2.1 FORMULATION PROCESS ..............................................................................................................................5 2.2 DESCRIPTION OF ALTERNATIVE PLANS.........................................................................................................5 2.3 EVALUATION AND COMPARISON OF ALTERNATIVES ...................................................................................5 2.3.1 Alternative A – No Action Alternative (Future without Project Action) ................................................5 2.3.2 Alternative B – Proposed Action – Replace the Open Ditch Irrigation System with a Gravity Pressurized Irrigation Delivery System ...............................................................................................................5 2.3.3 Costs ......................................................................................................................................................6 2.3.4 Benefits ..................................................................................................................................................7 2.4 IDENTIFICATION OF THE PREFERRED ALTERNATIVE..................................................................................12 2.4.1 Rationale for the Preferred Alternative ...............................................................................................12 2.4.2 Operation and Maintenance ................................................................................................................12 2.4.3 Permits and Licenses ...........................................................................................................................12 2.4.4 Risk and Uncertainty ...........................................................................................................................13 2.5 ALTERNATIVES CONSIDERED BUT ELIMINATED ........................................................................................13 3 AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES......................................15 3.1 SOILS AND PRIME FARMLAND....................................................................................................................15 3.1.1 Affected Environment...........................................................................................................................15 3.1.2 Environmental Consequences..............................................................................................................16 3.2 FLOODPLAINS,FLOODING,HYDROLOGY AND SURFACE WATER QUANTITY ..............................................16 3.2.1 Affected Environment...........................................................................................................................16 3.2.2 Environmental Consequences..............................................................................................................17 3.3 GEOLOGY AND GROUND WATER QUANTITY...............................................................................................19 3.3.1 Affected Environment...........................................................................................................................19 3.3.2 Environmental Consequences..............................................................................................................21 3.4 SURFACE WATER QUALITY.......................................................................................................................21 3.4.1 Affected Environment...........................................................................................................................21 3.4.2 Environmental Consequences..............................................................................................................22 3.5 GROUND WATER QUALITY .......................................................................................................................23 3.5.1 Affected Environment...........................................................................................................................23 3.5.2 Environmental Consequences..............................................................................................................24 3.6 WETLANDS................................................................................................................................................24 3.6.1 Affected Environment...........................................................................................................................24 3.6.2 Environmental Consequences..............................................................................................................26
Load more

Recommended publications
  • The Track of the Yellowstone Hot Spot: Volcanism, Faulting, and Uplift
    Geological Society of America Memoir 179 1992 Chapter 1 The track of the Yellowstone hot spot: Volcanism, faulting, and uplift Kenneth L. Pierce and Lisa A. Morgan US. Geological Survey, MS 913, Box 25046, Federal Center, Denver, Colorado 80225 ABSTRACT The track of the Yellowstone hot spot is represented by a systematic northeast-trending linear belt of silicic, caldera-forming volcanism that arrived at Yel- lowstone 2 Ma, was near American Falls, Idaho about 10 Ma, and started about 16 Ma near the Nevada-Oregon-Idaho border. From 16 to 10 Ma, particularly 16 to 14 Ma, volcanism was widely dispersed around the inferred hot-spot track in a region that now forms a moderately high volcanic plateau. From 10 to 2 Ma, silicic volcanism migrated N54OE toward Yellowstone at about 3 cm/year, leaving in its wake the topographic and structural depression of the eastern Snake River Plain (SRP). This <lo-Ma hot-spot track has the same rate and direction as that predicted by motion of the North American plate over a thermal plume fixed in the mantle. The eastern SRP is a linear, mountain- bounded, 90-km-wide trench almost entirely(?) floored by calderas that are thinly cov- ered by basalt flows. The current hot-spot position at Yellowstone is spatially related to active faulting and uplift. Basin-and-range faults in the Yellowstone-SRP region are classified into six types based on both recency of offset and height of the associated bedrock escarpment. The distribution of these fault types permits definition of three adjoining belts of faults and a pattern of waxing, culminating, and waning fault activity.
    [Show full text]
  • PDF Linkchapter
    Index [Italic page numbers indicate major references] Abajo Mountains, 382, 388 Amargosa River, 285, 309, 311, 322, Arkansas River, 443, 456, 461, 515, Abort Lake, 283 337, 341, 342 516, 521, 540, 541, 550, 556, Abies, 21, 25 Amarillo, Texas, 482 559, 560, 561 Abra, 587 Amarillo-Wichita uplift, 504, 507, Arkansas River valley, 512, 531, 540 Absaroka Range, 409 508 Arlington volcanic field, 358 Acer, 21, 23, 24 Amasas Back, 387 Aromas dune field, 181 Acoma-Zuni scction, 374, 379, 391 Ambrose tenace, 522, 523 Aromas Red Sand, 180 stream evolution patterns, 391 Ambrosia, 21, 24 Arroyo Colorado, 395 Aden Crater, 368 American Falls Lava Beds, 275, 276 Arroyo Seco unit, 176 Afton Canyon, 334, 341 American Falls Reservoir, 275, 276 Artemisia, 21, 24 Afton interglacial age, 29 American River, 36, 165, 173 Ascension Parish, Louisana, 567 aggradation, 167, 176, 182, 226, 237, amino acid ash, 81, 118, 134, 244, 430 323, 336, 355, 357, 390, 413, geochronology, 65, 68 basaltic, 85 443, 451, 552, 613 ratios, 65 beds, 127,129 glaciofluvial, 423 aminostratigraphy, 66 clays, 451 Piedmont, 345 Amity area, 162 clouds, 95 aggregate, 181 Anadara, 587 flows, 75, 121 discharge, 277 Anastasia Formation, 602, 642, 647 layer, 10, 117 Agua Fria Peak area, 489 Anastasia Island, 602 rhyolitic, 170 Agua Fria River, 357 Anchor Silt, 188, 198, 199 volcanic, 54, 85, 98, 117, 129, Airport bench, 421, 423 Anderson coal, 448 243, 276, 295, 396, 409, 412, Alabama coastal plain, 594 Anderson Pond, 617, 618 509, 520 Alamosa Basin, 366 andesite, 75, 80, 489 Ash Flat, 364 Alamosa
    [Show full text]
  • Geological Society of America
    BRIGHAM YOUNG UNIVERSITY GEOLOGICAL SOCIETY OF AMERICA FIELD TRIP GUIDE BOOK 1997 ANNUAL MEETING SALT LAKE CITY, UTAH PAR' EDITED BY PAUL KARL LINK AND BART J. KOWALLIS VOIUME 42 I997 PROTEROZOIC TO RECENT STRATIGRAPHY, TECTONICS, AND VOLCANOLOGY, UTAH, NEVADA, SOUTHERN IDAHO AND CENTRAL MEXICO Edited by Paul Karl Link and Bart J. Kowallis BRIGHAM YOUNG UNIVERSITY GEOLOGY STUDIES Volume 42, Part I, 1997 CONTENTS Neoproterozoic Sedimentation and Tectonics in West-Central Utah ..................Nicholas Christie-Blick 1 Proterozoic Tidal, Glacial, and Fluvial Sedimentation in Big Cottonwood Canyon, Utah ........Todd A. Ehlers, Marjorie A. Chan, and Paul Karl Link 31 Sequence Stratigraphy and Paleoecology of the Middle Cambrian Spence Shale in Northern Utah and Southern Idaho ............... W. David Liddell, Scott H. Wright, and Carlton E. Brett 59 Late Ordovician Mass Extinction: Sedimentologic, Cyclostratigraphic, and Biostratigraphic Records from Platform and Basin Successions, Central Nevada ............Stan C. Finney, John D. Cooper, and William B. N. Beny 79 Carbonate Sequences and Fossil Communities from the Upper Ordovician-Lower Silurian of the Eastern Great Basin .............................. Mark T. Harris and Peter M. Sheehan 105 Late Devonian Alamo Impact Event, Global Kellwasser Events, and Major Eustatic Events, Eastern Great Basin, Nevada and Utah .......................... Charles A. Sandberg, Jared R. Morrow and John E. Warme 129 Overview of Mississippian Depositional and Paleotectonic History of the Antler Foreland, Eastern Nevada and Western Utah ......................................... N. J. Silberling, K. M. Nichols, J. H. Trexler, Jr., E W. Jewel1 and R. A. Crosbie 161 Triassic-Jurassic Tectonism and Magmatism in the Mesozoic Continental Arc of Nevada: Classic Relations and New Developments ..........................S. J.
    [Show full text]
  • Idaho State Park Water Safety and Water Related Activities
    Lesson 5 Idaho State Park Water Safety and Water Related Activities Theme: “Water, water, everywhere….” Content Objectives: Students will: Read the legend on the Idaho State Parks and Recreation Guide Identify which parks have water related activities Learn different types of Personal Flotation Devices (PFDs) and why they are important Learn the proper fit of a PFD Write a creative story about an imaginary water related experience at a state park Suggested Level: Fourth (4th) Grade Standards Correlation: Language Arts o Standard 1: Reading Process 1.2, 1.8 o Standard 2: Comprehension/Interpretation 2.2 Language Usage o Standard 3: Writing Process 3.1, 3.2, 3.5 o Standard 5: Writing Components 5.2, 5.3, 5.4 Health o Standard 1: Healthy Lifestyles 1.1 o Standard 2: Risk Taking Behavior 2.1 o Standard 4: Consumer Health 4.1 Humanities: Visual Arts o Standard 3: Performance 3.1, 3.2, 3.3 Mathematics o Standard 1: Number & Operation 1.1, 1.2 o Standard 3: Concepts and Language of Algebra and Function 3.1, 3.3 o Standard 4: Concepts and Principles of Geometry 4.1, 4.3 Physical Education o Standard 1: Skill Movement 1.1 o Standard 5: Personal & Social Responsibility 5.1 Science o Standard 1: Nature of Science 1.8 Social Studies o Standard 2: Geography 2.1, 2.2 Suggested Time Allowance: 2 1-hour session(s) Materials: Idaho State Parks and Recreation Guides (Free from IDPR) Writing paper and pencils/pens Equipment to Take and Water Safety Rules Information Sheet State Parks Water Facts Sheet Assorted sizes and types of PFDs Materials for PFD Relay Race Copies of Concentration Game - 3 x 5 index cards Buck the Water Dog Math and Maze Handouts Pocket folders (portfolios) Preparation: Order Idaho State Parks and Recreation Guides (Free from IDPR).
    [Show full text]
  • Future Volcanism at Yellowstone Caldera: Insights from Geochemistry of Young Volcanic Units and Monitoring of Volcanic Unrest
    2012 Annual Meeting & Exposition Issue! SEPTEMBER 2012 | VOL. 22, NO. 9 A PUBLICATION OF THE GEOLOGICAL SOCIETY OF AMERICA® Future volcanism at Yellowstone caldera: Insights from geochemistry of young volcanic units and monitoring of volcanic unrest Inside: Preliminary Announcement and Call for Papers: 2013 GSA Northeastern Section Meeting, p. 38 Preliminary Announcement and Call for Papers: 2013 GSA Southeastern Section Meeting, p. 41 VOLUME 22, NUMBER 9 | 2012 SEPTEMBER SCIENCE ARTICLE GSA TODAY (ISSN 1052-5173 USPS 0456-530) prints news and information for more than 25,000 GSA member read- ers and subscribing libraries, with 11 monthly issues (April/ May is a combined issue). GSA TODAY is published by The Geological Society of America® Inc. (GSA) with offices at 3300 Penrose Place, Boulder, Colorado, USA, and a mail- ing address of P.O. Box 9140, Boulder, CO 80301-9140, USA. 4 Future volcanism at Yellowstone GSA provides this and other forums for the presentation of diverse opinions and positions by scientists worldwide, caldera: Insights from geochemistry regardless of race, citizenship, gender, sexual orientation, of young volcanic units and religion, or political viewpoint. Opinions presented in this monitoring of volcanic unrest publication do not reflect official positions of the Society. Guillaume Girard and John Stix © 2012 The Geological Society of America Inc. All rights reserved. Copyright not claimed on content prepared Cover: View looking west into the Midway geyser wholly by U.S. government employees within the scope of basin of Yellowstone caldera (foreground) and the West their employment. Individual scientists are hereby granted permission, without fees or request to GSA, to use a single Yellowstone rhyolite lava flow (background).
    [Show full text]
  • Download Abstract Booklet Session 2
    Abstract Volume 16th Swiss Geoscience Meeting Bern, 3oth November – 1st December 2018 2. Mineralogy, Petrology, Geochemistry 66 02. Mineralogy, Petrology, Geochemistry Sébastien Pilet, Bernard Grobéty, Eric Reusser Swiss Society of Mineralogy and Petrology (SSMP) TALKS: 2.1 Belgrano T.M., Diamond L.W., Vogt Y., Biedermann A., Gilgen S.A., Al-Tobi K.: A new map of the Oman ophiolite extrusives: insights into protoarc crust composition, boninite distribution and sulphide deposit prospectivity Symposium 2: Mineralogy, Petrology, Geochemistry Petrology, Symposium 2: Mineralogy, 2.2 Blattmann T., Wang S.-L., Lupker M., Märki L., Haghipour N., Wacker L., Chung L., Bernasconi S., Plötze M., Eglinton T.: Sulphuric acid-mediated weathering on Taiwan buffers geological sinks of atmospheric carbon 2.3 Bouvier A.-S, Baumgartner L.P., Rose-Koga E.F., Schiano P.: What can we learn from δ18O in olivine-hosted melt inclusions? 2.4 Bovay T., Rubatto D., Lanari P., Baumgartner L.: Garnet as a key mineral to trace the origin of fluid-rock interactions in high grade metamorphic rocks (Western Alps, Switzerland) 2.5 Bulle F., Rubatto D., Ruggieri G., Luisier C., Bouvier A.S.: Oxygen isotopes in white mica from the Larderello geothermal field – a tool to trace fluid flow in a complex magmatic – hydrothermal system 2.6 Ewing T.A., Rubatto D., Hermann J.: Formation of felsic lower continental crust: insights from U–Pb geochronology of detrital zircon from lower crustal granulites 2.7 Georgatou A., Chiaradia M.: Magmatic sulphide saturation in subduction and postsubduction magmas 2.8 Gianola O., Bartoli O., Ferri F., Cesare B., Galli A., Ferrero S., Capizzi L.: Melt inclusions and crustal anatexis at ultra-high temperature conditions 2.9 Hämmerli J*., Kemp T., Whitehouse M.
    [Show full text]
  • Science Journals
    SCIENCE ADVANCES | RESEARCH ARTICLE GEOLOGY Copyright © 2018 The Authors, some rights reserved; Rapid eruption of the Columbia River flood basalt and exclusive licensee American Association correlation with the mid-Miocene climate optimum for the Advancement Jennifer Kasbohm* and Blair Schoene of Science. No claim to original U.S. Government Works. Distributed Flood basalts, the largest volcanic events in Earth history, are thought to drive global environmental change be- under a Creative cause they can emit large volumes of CO2 and SO2 over short geologic time scales. Eruption of the Columbia River Commons Attribution Basalt Group (CRBG) has been linked to elevated atmospheric CO2 and global warming during the mid-Miocene NonCommercial climate optimum (MMCO) ~16 million years (Ma) ago. However, a causative relationship between volcanism and License 4.0 (CC BY-NC). warming remains speculative, as the timing and tempo of CRBG eruptions is not well known. We use U-Pb geo- chronology on zircon-bearing volcanic ash beds intercalated within the basalt stratigraphy to build a high-resolution CRBG eruption record. Our data set shows that more than 95% of the CRBG erupted between 16.7 and 15.9 Ma, twice as fast as previous estimates. By suggesting a recalibration of the geomagnetic polarity time scale, these data indicate that the onset of flood volcanism is nearly contemporaneous with that of the MMCO. Downloaded from INTRODUCTION fissure system in eastern Washington, eastern Oregon, western Idaho, The Columbia River Basalt Group (CRBG) is the youngest, smallest, and northern Nevada, in a back-arc setting between the Cascades and best-preserved continental flood basalt.
    [Show full text]
  • Yellowstone Geologic History Introduction
    An Overview of Yellowstone Geologic History Introduction Yellowstone National Park —the nation's first national park, established in 1872—occupies 2.2 million acres in northwestern Wyoming and southwestern Montana. Located along the continental divide within the Middle Rocky Mountains, Yellowstone is on a high plateau averaging 8,000 feet in elevation. The mountain ranges that encircle Yellowstone vary from 10,000 ft to nearly 14,000 ft, and include the Madison Range to the west; the Gallatin and Beartooth Mountains to the north; the Absaroka Mountains on the eastern border; and the Teton Range, within Grand Teton National Park , at the southern end. Yellowstone National Park contains the headwaters of two well known rivers, the Yellowstone River and the Snake River. The Ecosystem Yellowstone forms the core of the Greater Yellowstone Ecosystem (GYE) which comprises approximately 18 million acres of land encompassing portions of Wyoming, Montana, and Idaho. The GYE includes three national wildlife refuges, five national forests, and two national parks. This area is the last intact contiguous temperate ecosystem in the world! Elevation, river systems, mountain topography, wildlife ranges, characteristic flora and fauna, and human-use patterns are unique inside the GYE when compared to the surrounding lands. The GYE still contains nearly all of the living organisms found in pre-Columbian times, though not in the same numbers. Because of the tremendous biodiversity protected within Yellowstone, the Park was declared an International Biosphere Reserve in 1976 and a World Heritage Site in 1978. While wolves and grizzly Map of the Greater Yellowstone bears are spectacular examples of the Ecosystem.
    [Show full text]
  • Quaternary Fault and Fold Database of the United States
    Jump to Navigation Quaternary Fault and Fold Database of the United States As of January 12, 2017, the USGS maintains a limited number of metadata fields that characterize the Quaternary faults and folds of the United States. For the most up-to-date information, please refer to the interactive fault map. Island Park Caldera Rim faults (Class B) No. 619 Last Review Date: 1994-01-18 Compiled in cooperation with the Idaho Geological Survey citation for this record: Haller, K.M., compiler, 1994, Fault number 619, Island Park Caldera Rim faults, in Quaternary fault and fold database of the United States: U.S. Geological Survey website, https://earthquakes.usgs.gov/hazards/qfaults, accessed 12/14/2020 03:03 PM. Synopsis The only comprehensive study of these faults to date is described by Gilbert and others (1983 #434). Name The earliest use of the name for these faults was possibly by comments Gilbert and others (1983 #434). Fault ID: Referred to as "Island Park caldera boundary fault" in Stickney and Bartholomew (written commun. 1992 #556). County(s) and FREMONT COUNTY, IDAHO County(s) and FREMONT COUNTY, IDAHO State(s) Physiographic COLUMBIA PLATEAU province(s) MIDDLE ROCKY MOUNTAINS Reliability of Poor location Compiled at 1:400,000 scale. Comments: Location based on 1:400,000-scale (approx.) map of Gilbert and others (1983 #434), map has no topography. Many of the rim faults are buried and locations are inferred. Island Park caldera shown on 1:250,000-scale map of Mitchell and Bennett (1979 #652) is slightly smaller than shown here. Geologic setting Curvilinear and short linear scarps probably related to volcanic collapse with predominantly down-to-center movement.
    [Show full text]
  • Fremont County, Idaho Xm Mds
    Fremont County, Idaho Xm MDs Xm Qs PPP Ms Qf Qf C Henrys o TR s n Lake t Xm PPP Ms i n 20 en t a Xm Sawtell l D Centennial Mtns Tcv iv Ms Peak id e Tcv Xm Pzl Tcv Qf PPP Ms Ms Qs 44o 30 TR s Qf Qf Qb Island Park 111o 40 Qa IslandRes. Park Qs Qf 44o 20 Island Park Caldera Qf Big Bend Ridge Qb Qa Mesa Falls Qf 20 Qf Yellowsone National Park Yellowsone Qb Qs Qf Qf Warm Qb River Qw Qw Qw Ashton St. Anthony Qb k Sand Dunes r o Squirrel F Qf Qb Qb Big Grassy s Qs y Butte r Qa o en 32 44 00 H Qb Qs Qw St. Anthony Qf 112o 00 Teton Dam Qs 20 Site 111o 10 Teton 111o 30 ver Qb Teton Ri 0 5 10 miles 0 8 16 kilometers 1:500,000 Digital Atlas of Idaho, Nov. 2002 http://imnh.isu.edu/digitalatlas Compiled by Paul K. Link, Idaho State University, Geosciences Dept. http://www.isu.edu/departments/geology/ Fremont County Fremont County occupies the northeast corner of the Snake River Plain and includes the western fringe of Yellowstone National Park. It is mainly underlain by volcanic rocks associated with the Snake River Plain and Yellowstone hot spot system. Quaternary sediments overlies these volcanic rocks and allow irrigated farming. The windblown St. Anthony sand dunes contain sand blown northeastward from now-dry lakes to the southwest on the Snake River Plain. The Island Park area forms the central part of Fremont County, and consists of the subsided Island Park Caldera, that erupted about 1.2 million years ago to form the Mesa Falls tuff, and then subsided since its underpinnings were withdrawn.
    [Show full text]
  • Upper Henry's Fork
    UPPER HENRY’S FORK SUBBASIN ASSESSMENT Final December 1998 Prepared by Sheryl Hill Christopher Mebane Idaho Department of Health and Welfare Division of Environmental Quality Idaho Falls Regional Office 900 N. Skyline, Suite B Idaho Falls, ID 83402 (208) 528-2650 Table Of Contents Introduction ................................................................................................................................. 1 Nomenclature: Henrys or Henry’s? .................................................................................... 2 Authorization and Purpose.................................................................................................. 2 Acknowledgments............................................................................................................... 5 Physical Characteristics of the Upper Henry’s Fork Subbasin....................................................... 6 Climate................................................................................................................................ 6 Geology............................................................................................................................... 9 Topography....................................................................................................................... 18 Hydrography and Hydrology ............................................................................................ 22 Soils..................................................................................................................................
    [Show full text]
  • Complete Resource Book
    Lesson 1 A Hundred Years of Idaho State Parks Theme: “Happy Birthday to you…” Content Objectives: Students will: Learn about how, when, and why state parks were created Learn what is available at state parks today Create a state park folder Suggested Level: Fourth (4th) Grade Standards Correlation: Language Arts o Standard 2: Comprehension/Interpretation 2.1, 2.2 Health o Standard 4: Consumer Health 4. Humanities: Visual Arts o Standard 2: Critical thinking 2.2 Physical Education o Standard 3: Physically Active Lifestyle 3.1 o Standard 4: Personal Fitness 4.1 Social Studies o Standard 4: Civics and Government 4.1 Suggested Time Allowance: One 1-hour session Park Employee Materials to bring to classroom “Celebrating 100 Years of Parks in Idaho” Program Script “Transportation poster board pictures” “Poster board camping photos” Idaho State Parks and Recreation Guides (one for each student and teacher) Idaho Official Highway Maps (one for each student and teacher) Teacher Materials: “Celebrating 100 Years of Parks in Idaho” (including “transportation poster board pictures” and “poster board camping photos”) Idaho State Parks and Recreation Guides (one for each student and teacher) Idaho Official Highway Maps (one for each student and teacher) Idaho State Parks 100th Birthday Celebration DVD "Idaho State Parks for Kids! " Idaho Department of Parks and Recreation Organizational Chart Pocket folders (one per student) Art supplies Cupcakes Preparation: Contact the state park nearest you to find out if a park employee is available to present the “Celebrating 100 Years of Parks in Idaho” and schedule the day and time If a state park employee is unavailable, make copy of “Celebrating 100 Years of Parks in Idaho Script” (for each student) and order or download “transportation poster board pictures” and “poster board camping photos” from IDPR website.
    [Show full text]