---

Activity

2020

• USING GEOPHYSICAL METHODS TO DELINEATE LITHOLOGIC BOUNDARIES IN THE PENNSYLVANIA PIEDMONT
  45 The Appalachians, from North to South, from Crust to Mantle (Posters)
  Saturday, 21 March 2020

  1:30 PM - 5:30 PM

  Grand Ballroom A–D

---

2017

• THE JOHNSTOWN FLOOD OF 1889 – CHALLENGING THE FINDINGS OF THE ASCE INVESTIGATION REPORT
  29 Applied Geology, Environmental, Engineering, Hydrogeology, and Applied Geophysics
  Monday, 20 March 2017

  8:00 AM - 12:00 PM

  Frick, Conference Level

---

2016

• DAM-BREACH HYDROLOGY OF THE JOHNSTOWN FLOOD OF 1889 – CHALLENGING THE FINDINGS OF THE 1891 INVESTIGATION REPORT
  178 Recent Advances in Engineering Geology
  Tuesday, 27 September 2016

  8:00 AM - 12:00 PM

  Room 303

---

2011

• INFLUENCE OF MODIFICATIONS TO THE SOUTH FORK DAM ON THE JOHNSTOWN FLOOD OF 1889
  3 Engineering Geology/Slope Stability/Mine Subsidence
  Sunday, 20 March 2011

  8:00 AM - 12:00 PM

  Lawrence Welk
• HYDROLOGIC AND GEOPHYSICAL STUDIES AT THE HUGHES BOREHOLE: ACID MINE DRAINAGE PRECIPITATING FROM A FLOWING ARTESIAN WELL
  23 Hydrogeology (Posters)
  Sunday, 20 March 2011

  1:30 PM - 5:30 PM

  Grand Ballroom/Urban Room

---

2009

• A DETERMINATION OF PEAK DISCHARGE RATE AND WATER VOLUME FROM THE 1889 JOHNSTOWN FLOOD
  T76 Applied Hydrogeology: In Honor of Dr. Roy Williams
  Monday, 19 October 2009

  8:00 AM - 12:00 PM

  E141/142

---

Date Unknown

• GRAVITY STUDIES - ESTABLISHMENT OF REFERENCE BASE STATIONS IN JOHNSTOWN, PENNSYLVANIA
  7 Geophysics (Posters)